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Jeong J, Kim G, Lee JG. A review of food contamination with nitrated and oxygenated polycyclic aromatic hydrocarbons: toxicity, analysis, occurrence, and risk assessment. Food Sci Biotechnol 2024; 33:2261-2274. [PMID: 39145122 PMCID: PMC11319709 DOI: 10.1007/s10068-024-01653-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 08/16/2024] Open
Abstract
Prolonged exposure to polycyclic aromatic hydrocarbons (PAHs) and their derivatives, particularly nitrated polycyclic aromatic hydrocarbons (NPAHs) and oxygenated polycyclic aromatic hydrocarbons (OPAHs), can result in adverse health effects and may carry higher toxicity risks compared to PAHs alone. Various extraction methods have been utilized for PAHs derivatives from food samples. The analytes are then analyzed using gas chromatography/mass spectrometry and high-performance liquid chromatography techniques. PAHs derivatives are increasingly being detected in the environment, prompting scrutiny from numerous researchers. Similarly, their presence in food is becoming a significant concern. The elevated levels of PAH derivatives found in smoked food may result in detrimental dietary exposure and pose potential health hazards. Furthermore, investigating the level of exposure to these contaminants in food is imperative, as their consumption by humans carries inherent risks. Consequently, this review concentrates on the toxicity, analysis, occurrence, and risk evaluation of NPAHs and OPAHs present in food sources.
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Affiliation(s)
- Jihun Jeong
- Department of Food and Biotechnology, National Seoul University of Science and Technology, Seoul, 01811 South Korea
| | - Geehyeon Kim
- Department of Food and Biotechnology, National Seoul University of Science and Technology, Seoul, 01811 South Korea
| | - Joon-Goo Lee
- Department of Food and Biotechnology, National Seoul University of Science and Technology, Seoul, 01811 South Korea
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2
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Liu T, Zhang L, Pan L, Yang D. Polycyclic Aromatic Hydrocarbons' Impact on Crops and Occurrence, Sources, and Detection Methods in Food: A Review. Foods 2024; 13:1977. [PMID: 38998483 PMCID: PMC11240991 DOI: 10.3390/foods13131977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) represent a category of persistent organic pollutants that pose a global concern in the realm of food safety due to their recognized carcinogenic properties in humans. Food can be contaminated with PAHs that are present in water, air, or soil, or during food processing and cooking. The wide and varied sources of PAHs contribute to their persistent contamination of food, leading to their accumulation within these products. As a result, monitoring of the levels of PAHs in food is necessary to guarantee the safety of food products as well as the public health. This review paper attempts to give its readers an overview of the impact of PAHs on crops, their occurrence and sources, and the methodologies employed for the sample preparation and detection of PAHs in food. In addition, possible directions for future research are proposed. The objective is to provide references for the monitoring, prevention, and in-depth exploration of PAHs in food.
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Affiliation(s)
- Tengfei Liu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Taihu Area Institute of Agricultural Sciences, Suzhou 215106, China
| | - Li Zhang
- Suzhou Vocational University Center for Food Safety and Nutrition, Suzhou 215104, China
| | - Leiqing Pan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Daifeng Yang
- Jiangsu Taihu Area Institute of Agricultural Sciences, Suzhou 215106, China
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3
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Buculei I, Dobrin ME, Matei D, Onu I, Cioroiu IB, Caba B, Postelnicu MG, Buhociu DH, Musat CL, Crisan-Dabija R, Cernomaz AT, Trofor AC. HPLC Analysis and Risk Assessment of 15 Priority PAHs in Human Blood Serum of COPD Patient from Urban and Rural Areas, Iasi (Romania). J Pers Med 2023; 13:1290. [PMID: 37763058 PMCID: PMC10532781 DOI: 10.3390/jpm13091290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023] Open
Abstract
One of the leading risk factors for environmental health problems is air pollution. The World Health Organization (WHO) reports that this risk factor is associated with one of every nine deaths worldwide. Epidemiological studies conducted in this field have shown a solid connection between respiratory pathology and polycyclic aromatic hydrocarbon (PAH) exposure. COPD and asthma are respiratory diseases that were shown to have a strong association with exposure to PAHs. The purpose of the present study was to assess the serum levels of 15 PAHs in 102 COPD patients and to evaluate the results according to the residence environment of the investigated subjects. Analyses were carried out using a high-performance liquid chromatograph Nexera X2-Shimadzu Japan, which was equipped with an LC-30AD pump and an SIL-30AC autosampler. Spiked matrices, procedure blanks, spiked controls, and calibration standards in the acetonitrile were used as quality-assurance samples. Benzo(a)pyrene is the main representative of PAHs and was determined in higher concentrations in subjects with COPD versus the control group from the urban area (0.90/0.47 ng/mL) and rural area (0.73/0.44 ng/mL). The values obtained for the Benzo(a)pyrene-equivalent factor indicate a higher carcinogenic potential for patients diagnosed with COPD in urban areas compared to those in rural areas. These results could be due to traffic and vehicle emissions. This research identifies the need for legislative action to decrease semi-volatile organic compounds, especially PAHs, mainly in urban cities, in order to improve environmental management and health conditions.
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Affiliation(s)
- Ioana Buculei
- Doctoral School, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | | | - Daniela Matei
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Ilie Onu
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Doctoral School of the Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, Technical University “Gheorghe Asachi”, 700050 Iasi, Romania
| | - Ionel Bogdan Cioroiu
- Romanian Academy, Iasi Branch, Research Center for Oenology, 700505 Iasi, Romania
| | - Bogdan Caba
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Mădălina-Gabriela Postelnicu
- Department of Sports Games and Physical Education, Faculty of Physical Education and Sport, “Dunărea de Jos” University of Galați, 800008 Galati, Romania
| | - Dragos-Horia Buhociu
- Doctoral School of Urban Planning, Ion Mincu’ University of Architecture and Urban Planning, 010014 Bucharest, Romania
| | - Carmina Liana Musat
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, “Dunărea de Jos” University of Galati, 800008 Galati, Romania
| | - Radu Crisan-Dabija
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Pulmonology Department, Clinic of Pulmonary Diseases, 700115 Iasi, Romania
| | - Andrei Tudor Cernomaz
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Antigona Carmen Trofor
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Pulmonology Department, Clinic of Pulmonary Diseases, 700115 Iasi, Romania
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Ruggieri F, Biancolillo A, D’Archivio AA, Di Donato F, Foschi M, Maggi MA, Quattrociocchi C. Quantitative Structure–Retention Relationship Analysis of Polycyclic Aromatic Compounds in Ultra-High Performance Chromatography. Molecules 2023; 28:molecules28073218. [PMID: 37049982 PMCID: PMC10096086 DOI: 10.3390/molecules28073218] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
A comparative quantitative structure–retention relationship (QSRR) study was carried out to predict the retention time of polycyclic aromatic hydrocarbons (PAHs) using molecular descriptors. The molecular descriptors were generated by the software Dragon and employed to build QSRR models. The effect of chromatographic parameters, such as flow rate, temperature, and gradient time, was also considered. An artificial neural network (ANN) and Partial Least Squares Regression (PLS-R) were used to investigate the correlation between the retention time, taken as the response, and the predictors. Six descriptors were selected by the genetic algorithm for the development of the ANN model: the molecular weight (MW); ring descriptor types nCIR and nR10; radial distribution functions RDF090u and RDF030m; and the 3D-MoRSE descriptor Mor07u. The most significant descriptors in the PLS-R model were MW, RDF110u, Mor20u, Mor26u, and Mor30u; edge adjacency indice SM09_AEA (dm); 3D matrix-based descriptor SpPosA_RG; and the GETAWAY descriptor H7u. The built models were used to predict the retention of three analytes not included in the calibration set. Taking into account the statistical parameter RMSE for the prediction set (0.433 and 0.077 for the PLS-R and ANN models, respectively), the study confirmed that QSRR models, associated with chromatographic parameters, are better described by nonlinear methods.
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Affiliation(s)
- Fabrizio Ruggieri
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
| | - Alessandra Biancolillo
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
| | - Angelo Antonio D’Archivio
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
| | - Francesca Di Donato
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
| | - Martina Foschi
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
| | | | - Claudia Quattrociocchi
- Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila, Via Vetoio, 67100 Coppito, Italy
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Zhang Y, Pei C, Zhang J, Cheng C, Lian X, Chen M, Huang B, Fu Z, Zhou Z, Li M. Detection of polycyclic aromatic hydrocarbons using a high performance-single particle aerosol mass spectrometer. J Environ Sci (China) 2023; 124:806-822. [PMID: 36182185 DOI: 10.1016/j.jes.2022.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/14/2021] [Accepted: 02/03/2022] [Indexed: 06/16/2023]
Abstract
The real-time detection of the mixing states of polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs in ambient particles is of great significance for analyzing the source, aging process, and health effects of PAHs and nitro-PAHs; yet there is still few effective technology to achieve this type of detection. In this study, 11 types of PAH and nitro-PAH standard samples were analyzed using a high performance-single particle aerosol mass spectrometer (HP-SPAMS) in lab studies. The identification principles 'parent ions' and 'mass-to-charge (m/z) = 77' of each compound were obtained in this study. It was found that different laser energies did not affect the identification of the parent ions. The comparative experiments of ambient atmospheric particles, cooking and biomass burning emitted particles with and without the addition of PAHs were conducted and ruled out the interferences from primary and secondary organics on the identification of PAHs. Besides, the reliability of the characteristic ions extraction method was evaluated through the comparative study of similarity algorithm and deep learning algorithm. In addition, the real PAH-containing particles from vehicle exhaust emissions and ambient particles were also analyzed. This study improves the ability of single particle mass spectrometry technology to detect PAHs and nitro-PAHs, and HP-SPAMS was superior to SPAMS for detecting single particles containing PAHs and nitro-PAHs. This study provides support for subsequent ambient observations to identify the characteristic spectrum of single particles containing PAHs and nitro-PAHs.
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Affiliation(s)
- Yao Zhang
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China
| | - Chenglei Pei
- Guangzhou Environmental Monitoring Center, Guangzhou 510030, China
| | - Jinwen Zhang
- Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China
| | - Chunlei Cheng
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China.
| | - Xiufeng Lian
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China
| | - Mubai Chen
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China
| | - Bo Huang
- Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China
| | - Zhong Fu
- Guangzhou Hexin Analytical Instrument Company Limited, Guangzhou 510530, China
| | - Zhen Zhou
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China
| | - Mei Li
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air pollution, Jinan University, Guangzhou 510632, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China.
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Barbosa F, Rocha BA, Souza MCO, Bocato MZ, Azevedo LF, Adeyemi JA, Santana A, Campiglia AD. Polycyclic aromatic hydrocarbons (PAHs): Updated aspects of their determination, kinetics in the human body, and toxicity. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2023; 26:28-65. [PMID: 36617662 DOI: 10.1080/10937404.2022.2164390] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are legacy pollutants of considerable public health concern. Polycyclic aromatic hydrocarbons arise from natural and anthropogenic sources and are ubiquitously present in the environment. Several PAHs are highly toxic to humans with associated carcinogenic and mutagenic properties. Further, more severe harmful effects on human- and environmental health have been attributed to the presence of high molecular weight (HMW) PAHs, that is PAHs with molecular mass greater than 300 Da. However, more research has been conducted using low molecular weight (LMW) PAHs). In addition, no HMW PAHs are on the priority pollutants list of the United States Environmental Protection Agency (US EPA), which is limited to only 16 PAHs. However, limited analytical methodologies for separating and determining HMW PAHs and their potential isomers and lack of readily available commercial standards make research with these compounds challenging. Since most of the PAH kinetic data originate from animal studies, our understanding of the effects of PAHs on humans is still minimal. In addition, current knowledge of toxic effects after exposure to PAHs may be underrepresented since most investigations focused on exposure to a single PAH. Currently, information on PAH mixtures is limited. Thus, this review aims to critically assess the current knowledge of PAH chemical properties, their kinetic disposition, and toxicity to humans. Further, future research needs to improve and provide the missing information and minimize PAH exposure to humans.
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Affiliation(s)
- Fernando Barbosa
- Analytical and System Toxicology Laboratory, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Bruno A Rocha
- Analytical and System Toxicology Laboratory, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Marília C O Souza
- Analytical and System Toxicology Laboratory, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Mariana Z Bocato
- Analytical and System Toxicology Laboratory, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Lara F Azevedo
- Analytical and System Toxicology Laboratory, Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Joseph A Adeyemi
- Department of Biology, School of Sciences, Federal University of Technology, Akure, Nigeria
| | - Anthony Santana
- Department of Chemistry, University of Central Florida, Orlando, FL, USA
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, Orlando, FL, USA
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Jin R, Liu G, Zhou X, Zhang Z, Lin B, Liu Y, Qi Z, Zheng M. Analysis of polycyclic aromatic hydrocarbon derivatives in environment. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Song N, Tian Y, Luo Z, Dai J, Liu Y, Duan Y. Advances in pretreatment and analysis methods of aromatic hydrocarbons in soil. RSC Adv 2022; 12:6099-6113. [PMID: 35424557 PMCID: PMC8981609 DOI: 10.1039/d1ra08633b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/27/2022] [Indexed: 11/21/2022] Open
Abstract
Benzene compounds that are prevalent in the soil as organic pollutants mainly include BTEX (benzene, toluene, ethylbenzene, and three xylene isomers) and PAHs (polycyclic aromatic hydrocarbons). These pose a severe threat to many aspects of human health. Therefore, the accurate measurement of BTEX and PAHs concentrations in the soil is of great importance. The samples for analysis of BTEX and PAHs need to be suitable for the various detection methods after pretreatment, which include Soxhlet extraction, ultrasonic extraction, solid-phase microextraction, supercritical extraction, and needle trap. The detection techniques mainly consist of gas chromatography (GC), mass spectrometry (MS), and online sensors, and provide comprehensive information on contaminants in the soil. Their performance is evaluated in terms of sensitivity, selectivity, and recovery. Recently, there has been rapid progress in the pretreatment and analysis methods for the quantitative and qualitative analyses of BTEX and PAHs. Therefore, it is necessary to produce a timely and in-depth review of the emerging pretreatment and analysis methods, which is unfortunately absent from the recent literature. In this work, state-of-art extraction techniques and analytical methods have been summarized for the determination of BTEX and PAHs in soil, with a particular focus on the potential and limitations of the respective methods for different aromatic hydrocarbons. Accordingly, the paper will describe the basic methodological knowledge, as well as the recent advancement of pretreatment and analysis methods for samples containing BTEX and PAHs.
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Affiliation(s)
- Na Song
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
| | - Yonghui Tian
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
| | - Zewei Luo
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
| | - Jianxiong Dai
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
| | - Yan Liu
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an Shaanxi 710069 P. R.China
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Hettiyadura APS, Laskin A. Quantitative analysis of polycyclic aromatic hydrocarbons using high-performance liquid chromatography-photodiode array-high-resolution mass spectrometric detection platform coupled to electrospray and atmospheric pressure photoionization sources. JOURNAL OF MASS SPECTROMETRY : JMS 2022; 57:e4804. [PMID: 35019202 DOI: 10.1002/jms.4804] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/07/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are common pollutants present in atmospheric aerosols and other environmental mixtures. They are of particular air quality and human health concerns as many of them are carcinogenic toxins. They also affect absorption of solar radiation by aerosols, therefore contributing to the radiative forcing of climate. For environmental chemistry studies, it is advantageous to quantify PAH components using the same analytical technics that are commonly applied to characterize a broad range of polar analytes present in the same environmental mixtures. Liquid chromatography coupled with photodiode array and high-resolution mass spectrometric detection (LC-PDA-HRMS) is a method of choice for comprehensive characterization of chemical composition and quantification of light absorption properties of individual organic compounds present in the environmental samples. However, quantification of non-polar PAHs by this method is poorly established because of their imperfect ionization in electrospray ionization (ESI) technique. This tutorial article provides a comprehensive evaluation of the quantitative analysis of 16 priority pollutant PAHs in a standard reference material using the LC-MS platform coupled with the ESI source. Results are further corroborated by the quantitation experiments using an atmospheric pressure photoionization (APPI) method, which is more sensitive for the PAH detection. The basic concepts and step-by-step practical guidance for the PAHs quantitative characterization are offered based on the systematic experiments, which include (1) Evaluation effects of different acidification levels by formic acid on the (+)ESI-MS detection of PAHs. (2) Comparison of detection limits in ESI+ versus APPI+ experiments. (3) Investigation of the PAH fragmentation patterns in MS2 experiments at different collision energies. (4) Calculation of wavelength dependent mass absorption coefficient (MACλ) of the standard mixture and its individual PAHs using LC-PDA data. (5) Assessment of the minimal injected mass required for accurate quantification of MACλ of the standard mixture and of a multi-component environmental sample.
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Affiliation(s)
| | - Alexander Laskin
- Department of Chemistry, Purdue University, West Lafayette, Indiana, USA
- Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Indiana, USA
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Rusli H, Putri RM, Alni A. Recent Developments of Liquid Chromatography Stationary Phases for Compound Separation: From Proteins to Small Organic Compounds. Molecules 2022; 27:907. [PMID: 35164170 PMCID: PMC8840574 DOI: 10.3390/molecules27030907] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/17/2022] [Accepted: 01/25/2022] [Indexed: 11/21/2022] Open
Abstract
Compound separation plays a key role in producing and analyzing chemical compounds. Various methods are offered to obtain high-quality separation results. Liquid chromatography is one of the most common tools used in compound separation across length scales, from larger biomacromolecules to smaller organic compounds. Liquid chromatography also allows ease of modification, the ability to combine compatible mobile and stationary phases, the ability to conduct qualitative and quantitative analyses, and the ability to concentrate samples. Notably, the main feature of a liquid chromatography setup is the stationary phase. The stationary phase directly interacts with the samples via various basic mode of interactions based on affinity, size, and electrostatic interactions. Different interactions between compounds and the stationary phase will eventually result in compound separation. Recent years have witnessed the development of stationary phases to increase binding selectivity, tunability, and reusability. To demonstrate the use of liquid chromatography across length scales of target molecules, this review discusses the recent development of stationary phases for separating macromolecule proteins and small organic compounds, such as small chiral molecules and polycyclic aromatic hydrocarbons (PAHs).
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Affiliation(s)
- Handajaya Rusli
- Analytical Chemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Rindia M. Putri
- Biochemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
| | - Anita Alni
- Organic Chemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung 40132, Indonesia
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11
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Méndez García M, García de Llasera MP. A review on the enzymes and metabolites identified by mass spectrometry from bacteria and microalgae involved in the degradation of high molecular weight PAHs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 797:149035. [PMID: 34303250 DOI: 10.1016/j.scitotenv.2021.149035] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
High molecular weight PAHs (HMW PAHs) are dangerous pollutants widely distributed in the environment. The use of microorganisms represents an important tool for HMW PAHs bioremediation, so, the understanding of their biochemical pathways facilitates the development of biodegradation strategies. For this reason, the potential role of species of microalgae, bacteria, and microalga-bacteria consortia in the degradation of HMW PAHs is discussed. The identification of their metabolites, mostly by GC-MS and LC-MS, allows a better approach to the enzymes involved in the key steps of the metabolic pathways of HMW PAHs biodegradation. So, this review intends to address the proteomic research on enzyme activities and their involvement in regulating essential biochemical functions that help bacteria and microalgae in the biodegradation processes of HMW PAHs. It is noteworthy that, given that to the best of our knowledge, this is the first review focused on the mass spectrometry identification of the HMW PAHs metabolites; whereby and due to the great concern of the presence of HMW PAHs in the environment, this material could help the urgency of developing new bioremediation methods. The elucidation of the metabolic pathways of persistent pollutant degrading microorganisms should lead to a better knowledge of the enzymes involved, which could contribute to a very ecological route to the control of environmental contamination in the future.
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Affiliation(s)
- Manuel Méndez García
- Facultad de Química, Departamento de Química Analítica, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D. F. 04510, Mexico
| | - Martha Patricia García de Llasera
- Facultad de Química, Departamento de Química Analítica, Universidad Nacional Autónoma de México, Ciudad Universitaria, México, D. F. 04510, Mexico.
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12
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Tang S, Liu S, Frank BP. Feasibility of supercritical fluid extraction-supercritical fluid chromatography mass spectrometry for the determination of polycyclic aromatic hydrocarbons in particulate matter samples. J Sep Sci 2021; 44:3717-3726. [PMID: 34355862 DOI: 10.1002/jssc.202100464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 11/06/2022]
Abstract
There has been an increased interest in the development of green analytical methods for polycyclic aromatic hydrocarbons in environmental samples due to their toxicity and ubiquitous nature. In this work, the feasibility of on-line supercritical fluid extraction-supercritical fluid chromatography-tandem mass spectrometry was investigated for rapid and automated determination of the 16 United States Environmental Protection Agency priority polycyclic aromatic hydrocarbons in particulate matter samples. Three specialty polycyclic aromatic hydrocarbons columns with different stationary phases were screened and an octadecyl-silica column was selected for method development. Enhanced extraction efficiency was achieved using an extraction program with gradient flow rate and gradient concentration of acetonitrile as a modifier. The method was evaluated by analyzing standard reference materials of urban dust and diesel particulate matter from the National Institute of Standards and Technologies. Possible reasons for the unsatisfactory recoveries with certain polycyclic aromatic hydrocarbons are discussed.
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Affiliation(s)
- Shida Tang
- Bureau of Mobile Sources and Technology Development, New York State Department of Environmental Conservation, Albany, NY, USA
| | - Sharlin Liu
- Bureau of Pesticides Management, Division of Materials Management, New York State Department of Environmental Conservation, Albany, NY, USA
| | - Brian P Frank
- Bureau of Mobile Sources and Technology Development, New York State Department of Environmental Conservation, Albany, NY, USA
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13
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Vu-Duc N, Phung Thi LA, Le-Minh T, Nguyen LA, Nguyen-Thi H, Pham-Thi LH, Doan-Thi VA, Le-Quang H, Nguyen-Xuan H, Thi Nguyen T, Nguyen PT, Chu DB. Analysis of Polycyclic Aromatic Hydrocarbon in Airborne Particulate Matter Samples by Gas Chromatography in Combination with Tandem Mass Spectrometry (GC-MS/MS). JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:6641326. [PMID: 34136305 PMCID: PMC8175174 DOI: 10.1155/2021/6641326] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/17/2021] [Accepted: 05/12/2021] [Indexed: 05/26/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), the family of organic contaminations, have been shown to have negative effects on human health. However, until now, the comprehension on occurrence, distribution, and risk assessment of human exposure to PAHs has been limited in Vietnam. In this work, a capillary gas chromatography coupled with electron impact ionization tandem mass spectrometry (GC-EI-MS/MS) has been introduced for analysis of 16 PAHs in some particulate matter samples. PAHs have been separated on the TG 5 ms capillary gas chromatographic column and detected by tandem mass spectrometry in multiple reaction monitoring mode. The PAHs in the particulate matter (PM 2.5 and PM 10) samples were extracted by ultrasonic-assisted liquid extraction and cleaned up by an acidic silica gel solid phase extraction. The linearity range of all analyzed PAHs was from 5 to 2000 ng mL-1 with R 2 ≥0.9990. Limit of detection (LOD) of PAHs in particulate matter sample was from 0.001 ng m-3 (Br-Naph) to 0.276 ng m-3 (Fln). The recovery of PAHs was investigated by international proficiency testing samples. The recoveries of PAHs in proficiency testing sample ranged from 79.3% (Chr) to 109.8% (IcdP). The in-house validated GC-EI-MS/MS method was then applied to analysis of some particulate matter samples that were collected in the Hanoi areas. The total concentrations of PAHs in several brands of samples collected from Hanoi were found in the range of 226.3 ng m-3-706.43 ng m-3. Among the studied compounds, naphthalene was found at high frequency and ranged from 106.5 ng m-3 to 631.1 ng m-3. The main distribution of the PAHs in particulate matter samples was two-ring and three-ring compounds.
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Affiliation(s)
- Nam Vu-Duc
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Lan Anh Phung Thi
- School of Environmental Science and Technology, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hanoi 100000, Vietnam
| | - Thuy Le-Minh
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Lan-Anh Nguyen
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Huong Nguyen-Thi
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Loan-Ha Pham-Thi
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Van-Anh Doan-Thi
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Huong Le-Quang
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Hung Nguyen-Xuan
- Center for Research and Technology Transfer, Vietnam Academic of Science and Technology, 18 Hoang Quoc Viet, Hanoi 100000, Vietnam
| | - Thao Thi Nguyen
- School of Environmental Science and Technology, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hanoi 100000, Vietnam
| | - Phuong Thanh Nguyen
- FPT University, Hoa Lac High Tech Park, Km 29 Thang Long Boulevard, Thach That, Hanoi 100000, Vietnam
| | - Dinh Binh Chu
- Department of Analytical Chemistry, School of Chemical Engineering, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi 100000, Vietnam
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14
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Chen YL, Wang W, Gatien Ngounou Wetie A, Shi L, Eddy J, John Lin ZP, Sunkaraneni S. An Ultrasensitive LC-APPI-MS/MS Method for Simultaneous Determination of Ciclesonide and Active Metabolite Desisobutyryl-Ciclesonide in Human Serum and Its Application to a Clinical Study. J Appl Lab Med 2021; 5:41-53. [PMID: 31662413 DOI: 10.1373/jalm.2019.029397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 05/28/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND The development of more efficient drug delivery devices for ciclesonide inhalation products requires an ultrasensitive bioanalytical method to measure systematic exposure of ciclesonide (CIC) and its active metabolite desisobutyryl-ciclesonide (des-CIC) in humans. METHOD Serum sample was extracted with 1-chlorobutane. A reversed-phase liquid chromatography coupled with atmospheric pressure photoionization-tandem mass spectrometry (LC-APPI-MS/MS) method was used for quantification of 1-500 pg/mL for both analytes in a 0.500-mL serum. The analysis time was 4.7 min/injection. CIC-d11 and des-CIC-d11 were used as the internal standards. RESULTS Calibration curves showed good linearity (r2 > 0.99) for both analytes. This novel method was precise and accurate with interassay precision and accuracy of all within 9.6% CV and ± 4.0% bias for regular QC samples. Extraction recovery was approximately 85% for both analytes. Serum samples are stable for 3 freeze-thaw cycles, 24 h at bench top, and up to 706 days at both -20 °C and -70 °C. This method was successfully used to support a pharmacokinetic (PK) comparison between the inhalation suspensions and an inhalation aerosol of ciclesonide in healthy participants. The method robustness was also supported by the good incurred sample reanalysis reproducibility. CONCLUSION APPI, a highly selective and sensitive ionization source, made possible for quantifying CIC and des-CIC with a lower limit of quantification (LLOQ) of 1 pg/mL in human serum by LC-MS/MS. A 10-fold sensitivity improvement from the most sensitive reported method (LLOQ, 10 pg/mL) is essential to fully characterize the PK profiles of CIC and des-CIC in support of the clinical development of the ciclesonide-related medications for patients.
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Affiliation(s)
- Yu-Luan Chen
- Clinical Pharmacology, Sunovion Pharmaceuticals, Marlborough, MA
| | - Weimin Wang
- Bioanalytical Services, Frontage Laboratories, Exton, PA
| | | | - Lei Shi
- Clinical Pharmacology, Sunovion Pharmaceuticals, Marlborough, MA
| | - John Eddy
- Clinical Pharmacology, Sunovion Pharmaceuticals, Marlborough, MA
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15
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Chatzimichail S, Rahimi F, Saifuddin A, Surman AJ, Taylor-Robinson SD, Salehi-Reyhani A. Hand-portable HPLC with broadband spectral detection enables analysis of complex polycyclic aromatic hydrocarbon mixtures. Commun Chem 2021; 4:17. [PMID: 36697529 PMCID: PMC9814556 DOI: 10.1038/s42004-021-00457-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/19/2021] [Indexed: 01/28/2023] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are considered priority hazardous substances due to their carcinogenic activity and risk to public health. Strict regulations are in place limiting their release into the environment, but enforcement is hampered by a lack of adequate field-testing procedure, instead relying on sending samples to centralised analytical facilities. Reliably monitoring levels of PAHs in the field is a challenge, owing to the lack of field-deployable analytical methods able to separate, identify, and quantify the complex mixtures in which PAHs are typically observed. Here, we report the development of a hand-portable system based on high-performance liquid chromatography incorporating a spectrally wide absorption detector, capable of fingerprinting PAHs based on their characteristic spectral absorption profiles: identifying 100% of the 24 PAHs tested, including full coverage of the United States Environmental Protection Agency priority pollutant list. We report unsupervised methods to exploit these new capabilities for feature detection and identification, robust enough to detect and classify co-eluting and hidden peaks. Identification is fully independent of their characteristic retention times, mitigating matrix effects which can preclude reliable determination of these analytes in challenging samples. We anticipate the platform to enable more sophisticated analytical measurements, supporting real-time decision making in the field.
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Affiliation(s)
| | - Faraz Rahimi
- Department of Surgery and Cancer, Imperial College London, London, W12 0HS, UK
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Aliyah Saifuddin
- Department of Surgery and Cancer, Imperial College London, London, W12 0HS, UK
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Andrew J Surman
- Department of Chemistry, King's College London, London, SE1 1DB, UK
| | | | - Ali Salehi-Reyhani
- Department of Surgery and Cancer, Imperial College London, London, W12 0HS, UK.
- Institute of Molecular Sciences & Engineering, Imperial College London, London, SW7 2AZ, UK.
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16
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Alikord M, Mohammadi A, Kamankesh M, Shariatifar N. Food safety and quality assessment: comprehensive review and recent trends in the applications of ion mobility spectrometry (IMS). Crit Rev Food Sci Nutr 2021; 62:4833-4866. [PMID: 33554631 DOI: 10.1080/10408398.2021.1879003] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ion mobility spectrometry (IMS) is an analytical separation and diagnostic technique that is simple and sensitive and a rapid response and low-priced technique for detecting trace levels of chemical compounds in different matrices. Chemical agents and environmental contaminants are successfully detected by IMS and have been recently considered to employ in food safety. In addition, IMS uses stand-alone or coupled analytical diagnostic tools with chromatographic and spectroscopic methods. Scientific publications show that IMS has been applied 21% in the pharmaceutical industry, 9% in environmental studies and 13% in quality control and food safety. Nevertheless, applications of IMS in food safety and quality analysis have not been adequately explored. This review presents the IMS-related analysis and focuses on the application of IMS in food safety and quality. This review presents the important topics including detection of traces of chemicals, rate of food spoilage and freshness, food adulteration and authenticity as well as natural toxins, pesticides, herbicides, fungicides, veterinary, and growth promoter drug residues. Further, persistent organic pollutants (POPs), acrylamide, polycyclic aromatic hydrocarbon (PAH), biogenic amines, nitrosamine, furfural, phenolic compounds, heavy metals, food packaging materials, melamine, and food additives were also examined for the first time. Therefore, it is logical to predict that the application of the IMS technique in food safety, food quality, and contaminant analysis will be impressively increased in the future. HighlightsCurrent status of IMS for residues and contaminant detection in food safety.To assess all the detected contaminants in food safety, for the first time.Identified IMS-related parameters and chemical compounds in food safety control.
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Affiliation(s)
- Mahsa Alikord
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdorreza Mohammadi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Kamankesh
- Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Nabi Shariatifar
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Halal Research Center of the Islamic Republic of Iran, Tehran, Iran
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17
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Emrarian M, Sohrabi MR, Goudarzi N, Tadayon F. Retention time prediction of polycyclic aromatic hydrocarbons in gas chromatography–mass spectrometry using QSPR based on random forests and artificial neural network. Struct Chem 2021. [DOI: 10.1007/s11224-020-01614-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Kim DY, Lee BE, Shin HS. Determination of polycyclic aromatic hydrocarbons (PAHs) in smoking cessation aids by using high-performance liquid chromatography. Anal Biochem 2021; 617:114119. [PMID: 33508273 DOI: 10.1016/j.ab.2021.114119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 11/28/2022]
Abstract
A method has been developed and validated for the determination of polycyclic aromatic hydrocarbons (PAHs) in the electronic liquid/gas (e-liquid/e-gas) of electronic cigarettes (e-cigarettes) and ignitable/non-ignitable smokeless cigarettes by high-performance liquid chromatography-fluorescence detection. The proposed method was further applied to detect the presence of PAHs in 16 commercially available smoking cessation aids. The analytical method for benz [a]anthracene, chrysene, benzo [b]fluoranthene, benzo [k]fluoranthene, benzo [a]pyrene, dibenz [a,h]anthracene, and benzo [g,h,i]perylene (BghiP) was validated in terms of linearity, limit of detection, limit of quantification, recovery (%), accuracy (%), and precision (%). Results showed low levels of PAHs in all samples, except for the non-ignitable cigarettes. In particular, BghiP was detected in e-liquid even though a mixture of food-grade propylene glycol and vegetable glycerin was used, and at least one PAH was present in the e-gas of all e-cigarettes, except for one. From these results, it is necessary to prepare an accurate quantitative analysis method and investigate unexpected hazardous materials generated from smoking cessation aids to prevent health problems and provide the scientific basis for safety management.
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Affiliation(s)
- Do-Yeong Kim
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Bo-Eun Lee
- Department of Food Science and Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Han-Seung Shin
- Department of Food Science and Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea.
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19
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Wang C, Liu J, Chen Y, Zhang L, Li L, Xu R, Xing G, Yuan M. Quantitation of ultra-trace nitrated polycyclic aromatic hydrocarbons isomers in water by online solid-phase extraction coupled-liquid chromatography-mass spectrometry. J Chromatogr A 2020; 1635:461738. [PMID: 33302136 DOI: 10.1016/j.chroma.2020.461738] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/12/2020] [Accepted: 11/16/2020] [Indexed: 10/23/2022]
Abstract
An online solid-phase extraction (SPE)-coupled liquid chromatography-mass spectrometry (LC-MS) method was established for the determination of 10 nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) in water. Water samples were mixed with methanol to generate 40% methanol solutions (v/v), and filtered by 0.45 μm membrane. The filtration with polytetrafluoroethylene(PTFE) membrane got higher recovery rates than nylon membrane, especially for 4-ring and 5-ring nitro-PAHs. 2.5 mL solution was directly injected into online SPE flow path to allow for online purification and enrichment of target analytes in the SPE column. The nitro-PAHs eluted from the SPE column were automatically transferred to the analytical flow path by a well-designed valve-switching system. With the optimization of LC and MS condition, ten nitro-PAH isomers was separated and detected from each other by LC-MS/MS with negative atmospheric pressure chemical ionization (APCI). It was firstly found that nitro-PAHs could produce strong [M-H]- precursor ions in the primary MS besides [M+e]- and [M+15]-. In the secondary MS, the precursor ions mainly lose NO neutral molecule (30 Daltons) to produce daughter ions. The online SPE and LC-MS analysis process was completed in 15.5 min. The linear correlation coefficients of 10 nitro-PAH standard curves were higher than 0.99. The detection limits of nitro-PAHs were about 1.2~22.2 ng/L (S/N=3). The intra-day and inter-day reproducibility (RSD, n=6) were 1.6%~8.4% and 5.3%~16.9%, respectively. The recoveries of 10, 40 and 200 ng/L in tap water were 71.7%~106.4%, 79.7%~100.9% and 73.0%~105.5%, with the corresponding RSD of 2.4%~10.5%, 2.1%~8.6% and 2.7%~6.2%, respectively.
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Affiliation(s)
- Chao Wang
- China National Environmental Monitoring Centre, Beijing, 100012, China.
| | - Jinbin Liu
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Ye Chen
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Linlin Zhang
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Lijun Li
- SCIEX China, Beijing, 100015, China
| | - Renji Xu
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Guanhua Xing
- China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Mao Yuan
- China National Environmental Monitoring Centre, Beijing, 100012, China
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20
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Qu L, Yu H, Yin S, Li Y, Sun C. Solid-Phase Extraction Combined with Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry for the Determination of 5 Trace Nitro-Polycyclic Aromatic Hydrocarbons in Barbecued Foods. J AOAC Int 2020; 103:1512-1520. [PMID: 33247746 DOI: 10.1093/jaoacint/qsaa062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/27/2020] [Accepted: 04/25/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) are the derivatives of polycyclic aromatic hydrocarbon which are direct mutagens and carcinogens to human. Nitro-PAHs can be produced in the process of food barbecuing/grilling. At present, there are few studies for the determination of nitro-PAHs in food. OBJECTIVE To assess the effect of barbecued food to human health, we have established a method for the determination of 5 nitro-PAHs in barbecued foods. METHODS The target nitro-PAHs were extracted with the mixture of methanol/acetone and then purified with an HLB SPE cartridge and finally analyzed by ultra-high-performance liquid chromatography-tandem mass spectrometry. Two pairs of target multiple reaction monitoring (MRM) ion pairs have been successfully identified for the target nitro-PAHs, and confirmed by high-resolution mass spectrometry to explore their formation mechanism. RESULTS The method had linear ranges of 2.0-500 µg/L (except 1-nitronaphthalene 20-5000 µg/L) with the correlation coefficients greater than 0.995. The extraction recoveries were between 70.1% and 85.6% with the relative standard deviations less than 10.0%. The limits of detection of the method were less than 0.60 µg/L (except 1-nitronaphthalene 6.0 µg/L). CONCLUSIONS The method has been successfully applied to the analysis of 5 nitro-PAHs in barbecued foods. 1-nitronaphthalene, 1,8-dinitropyrene , 1-nitropyrene were detected in some charcoal grilled samples with the contents of 1.35-12.9 µg/kg. 1,8-Dinitropyrene was detected in some oil-fried samples with the contents of 2.12-5.12 µg/kg. HIGHLIGHTS This work presents an ultra-high-performance liquid chromatography-tandem mass spectrometry method for the determination of 5 nitro-PAHs in barbecued foods for the first time. The method has been successfully applied to the analysis of 5 nitro-PAHs in various barbecued foods and the nitro-PAHs were detected in some barbecued food samples. The mechanism of mass spectrometric decomposition of nitro-PAHs was investigated as well.
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Affiliation(s)
- Lingli Qu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.,Shanghai University of Medicine and Health Sciences, Shanghai, 201318 China
| | - Huan Yu
- Shanghai Ab, Sciex Analytical Instrument Trading Co. Ltd, Shanghai 200235, China
| | - Shuo Yin
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.,Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu, 610041, China
| | - Yongxin Li
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.,Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu, 610041, China
| | - Chengjun Sun
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.,Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu, 610041, China
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21
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Harris KJ, Subbiah S, Tabatabai M, Archibong AE, Singh KP, Anderson TA, Adunyah SE, Ramesh A. Pressurized liquid extraction followed by liquid chromatography coupled to a fluorescence detector and atmospheric pressure chemical ionization mass spectrometry for the determination of benzo(a)pyrene metabolites in liver tissue of an animal model of colon cancer. J Chromatogr A 2020; 1622:461126. [PMID: 32376019 DOI: 10.1016/j.chroma.2020.461126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 02/07/2023]
Abstract
Since metabolism is implicated in the carcinogenesis of toxicants, an efficient extraction method together with an analytical method is warranted to quantify tissue burdens of a carcinogen and/or its metabolites. Therefore, the aim of this study was to validate a pressurized liquid extraction (PLE) method for measuring metabolites of benzo(a)pyrene [B(a)P; a food-borne carcinogen] from tissue samples. The sample extraction was performed separately by PLE and liquid-liquid extraction (LLE). PLE followed by high-performance liquid chromatography coupled to online fluorescence detector (HPLC-FLD) was used to quantify separated analytes; and by ultra-high-performance liquid chromatography (UHPLC) coupled to atmospheric pressure chemical ionization tandem mass spectrometry (UHPLC-APCI-MS/MS) were used for confirmation purposes. The UHPLC-MS/MS was set-up in the atmospheric pressure chemical ionization (APCI) positive interface with selective reaction monitoring (SRM). The analytical performance characteristics of the PLE technique was assessed at different temperatures, pressure, number of cycles and solvent types. A methanol + chloroform + water mixture (30:15:10, v/v/v) yielded greater recoveries at an extraction temperature range of 60-80°C, pressure of 10 MPa and an extraction time of 10 min. The PLE method was validated by the analysis of spiked tissue samples and measuring recoveries and limits of quantitation for the analytes of interest using HPLC-FLD equipment. The optimized PLE-HPLC-FLD method was used to quantify the concentrations of B(a)P metabolites in liver samples obtained from a colon cancer animal model. Overall, PLE performed better in terms of extraction efficiency, recovery of B(a)P metabolites and shortened sample preparation time when compared with the classic LLE method.
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Affiliation(s)
- Kenneth J Harris
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 Dr. D.B. Todd Blvd., Nashville, TN 37208, USA
| | - Seenivasan Subbiah
- Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79409, USA
| | - Mohammad Tabatabai
- School of Graduate Studies & Research, Meharry Medical College, Nashville, TN 37208, USA
| | - Anthony E Archibong
- Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA
| | - Kamaleshwar P Singh
- Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79409, USA
| | - Todd A Anderson
- Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79409, USA
| | - Samuel E Adunyah
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 Dr. D.B. Todd Blvd., Nashville, TN 37208, USA
| | - Aramandla Ramesh
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 Dr. D.B. Todd Blvd., Nashville, TN 37208, USA.
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22
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Sui X, Terán JE, Feng C, Wustrow K, Smith CJ, Vinueza NR. Quantification of anthracene after dermal absorption test via APCI-tandem mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2820-2826. [PMID: 32930204 DOI: 10.1039/d0ay00486c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An analytical method for the detection and quantification of anthracene from interstitial fluid samples was developed by using Atmospheric Pressure Chemical Ionization-Tandem Mass Spectrometry (APCI-MS/MS). The anthracene samples were obtained using intradermal microdialysis to assess dermal absorption of this polycyclic aromatic hydrocarbon (PAH). The experimental considerations were evaluated based on the chemical properties of this PAH and the detection limits of the instrumentation. The addition of an isotopically labeled internal standard allows the reduction of ionization suppression due to instrumental fluctuation and run-to-run deviation. The dermal extraction samples were prepared considering the proceeding conditions for measurement enhancement. Several variables for method validation including coefficient of determination (R2 = 0.993 ± 0.003), percent error (% error = 0 ± 2%), coefficient of variation (% CV = 5 ± 1%), lowest limit of detection (LOD = 39 ± 3 ng mL-1), and lowest limit of quantification (LLOQ = 129 ± 10 ng mL-1) were obtained from the inter- and intra-day measurements for the calibration and the quality control samples. Posterior to this, actual dermal interstitial fluid samples were measured, and it was observed they fitted into the ranges defined from the method development with good accuracy and precision. It was observed that the introduction of an internal standard while performing APCI-MS/MS allows an accurate and precise measurement of the concentration of anthracene to be obtained from dermal extraction samples. This method could be further used for complex mixtures to enhance our understanding of hazardous exposure of PAH on firefighter gear.
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Affiliation(s)
- Xinyi Sui
- Department of Textile Engineering, Chemistry and Science, College of Textiles, North Carolina State University, Raleigh, NC 27695, USA.
| | - Julio E Terán
- Department of Textile Engineering, Chemistry and Science, College of Textiles, North Carolina State University, Raleigh, NC 27695, USA.
| | - Chengcheng Feng
- Department of Textile Engineering, Chemistry and Science, College of Textiles, North Carolina State University, Raleigh, NC 27695, USA.
| | - Killian Wustrow
- Department of Health & Exercise Science, Appalachian State University, Boone, NC 28608, USA
| | - Caroline J Smith
- Department of Health & Exercise Science, Appalachian State University, Boone, NC 28608, USA
| | - Nelson R Vinueza
- Department of Textile Engineering, Chemistry and Science, College of Textiles, North Carolina State University, Raleigh, NC 27695, USA.
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23
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Sun C, Qu L, Wu L, Wu X, Sun R, Li Y. Advances in analysis of nitrated polycyclic aromatic hydrocarbons in various matrices. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115878] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Zhang Q, Liu P, Li S, Zhang X, Chen M. Progress in the analytical research methods of polycyclic aromatic hydrocarbons (PAHs). J LIQ CHROMATOGR R T 2020. [DOI: 10.1080/10826076.2020.1746668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Qiongyao Zhang
- Department of Hygiene Detection, College of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
| | - Ping Liu
- Department of Hygiene Detection, College of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
| | - Shuling Li
- Department of Hygiene Detection, College of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
| | - Xuejiao Zhang
- Department of Hygiene Detection, College of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
| | - Mengdi Chen
- Department of Hygiene Detection, College of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
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25
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Chemometric assisted determination of 16 PAHs in water samples by ultrasonic assisted emulsification microextraction followed by fast high-performance liquid chromatography with diode array detector. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104056] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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26
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Tropp J, Ihde MH, Williams AK, White NJ, Eedugurala N, Bell NC, Azoulay JD, Bonizzoni M. A sensor array for the discrimination of polycyclic aromatic hydrocarbons using conjugated polymers and the inner filter effect. Chem Sci 2019; 10:10247-10255. [PMID: 32110311 PMCID: PMC7020785 DOI: 10.1039/c9sc03405f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/04/2019] [Indexed: 12/27/2022] Open
Abstract
The inner filter effect and multivariate array sensing using conjugated polymers are combined for the detection and challenging discrimination of closely related polycyclic aromatic hydrocarbons.
Natural and anthropogenic activities result in the production of polycyclic aromatic hydrocarbons (PAHs), persistent pollutants that negatively impact the environment and human health. Rapid and reliable methods for the detection and discrimination of these compounds remains a technological challenge owing to their relatively featureless properties, structural similarities, and existence as complex mixtures. Here, we demonstrate that the inner filter effect (IFE), in combination with conjugated polymer (CP) array-based sensing, offers a straightforward approach for the quantitative and qualitative profiling of PAHs. The sensor array was constructed from six fluorescent fluorene-based copolymers, which incorporate side chains with peripheral 2-phenylbenzimidazole substituents that provide spectral overlap with PAHs and give rise to a pronounced IFE. Subtle structural differences in copolymer structure result in distinct spectral signatures, which provide a unique “chemical fingerprint” for each PAH. The discriminatory power of the array was evaluated using linear discriminant analysis (LDA) and principal component analysis (PCA) in order to discriminate between 16 PAH compounds identified as priority pollutants by the US Environmental Protection Agency (EPA). This array is the first multivariate system reliant on the modulation of the spectral signatures of CPs through the IFE for the detection and discrimination of closely related polynuclear aromatic species.
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Affiliation(s)
- Joshua Tropp
- Center for Optoelectronic Materials and Devices , School of Polymer Science and Engineering , The University of Southern Mississippi , 118 College Drive #5050 , Hattiesburg , MS 39406 , USA .
| | - Michael H Ihde
- Department of Chemistry and Biochemistry , The University of Alabama , P.O. Box 870336 , Tuscaloosa , AL 35487 , USA .
| | - Abagail K Williams
- Center for Optoelectronic Materials and Devices , School of Polymer Science and Engineering , The University of Southern Mississippi , 118 College Drive #5050 , Hattiesburg , MS 39406 , USA .
| | - Nicholas J White
- Department of Chemistry and Biochemistry , The University of Alabama , P.O. Box 870336 , Tuscaloosa , AL 35487 , USA .
| | - Naresh Eedugurala
- Center for Optoelectronic Materials and Devices , School of Polymer Science and Engineering , The University of Southern Mississippi , 118 College Drive #5050 , Hattiesburg , MS 39406 , USA .
| | - Noel C Bell
- Center for Optoelectronic Materials and Devices , School of Polymer Science and Engineering , The University of Southern Mississippi , 118 College Drive #5050 , Hattiesburg , MS 39406 , USA .
| | - Jason D Azoulay
- Center for Optoelectronic Materials and Devices , School of Polymer Science and Engineering , The University of Southern Mississippi , 118 College Drive #5050 , Hattiesburg , MS 39406 , USA .
| | - Marco Bonizzoni
- Department of Chemistry and Biochemistry , The University of Alabama , P.O. Box 870336 , Tuscaloosa , AL 35487 , USA .
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Ickert S, Beck S, Linscheid MW, Riedel J. VUV Photodissociation Induced by a Deuterium Lamp in an Ion Trap. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:2114-2122. [PMID: 31429053 DOI: 10.1007/s13361-019-02282-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 06/25/2019] [Accepted: 06/28/2019] [Indexed: 05/16/2023]
Abstract
Tandem mass spectrometry represents an important analytical tool to unravel molecular structures and to study the gas-phase behavior of organic molecules. Besides commonly used methods like collision-induced dissociation and electron capture or transfer dissociation, new ultraviolet light-based techniques have the potential to synergistically add to the activation methods. Here, we present a new simple, yet robust, experimental design for polychromatic activation of trapped ions using the 115-160 nm output of a commercially available deuterium lamp. The resulting continuous dissociative excitation with photons of a wide energy range from 7.7 to 10.8 eV is studied for a comprehensive set of analyte classes in both positive and negative ion modes. While being simple, affordable, compact, and of low maintenance, the new setup initiates fragmentation of most precursor ions via their known dissociation pathways. Additionally, some new fragmentation patterns were discovered. Especially, electron loss and electron capture reactions with subsequent fragmentations were observed. For oligonucleotides, peptides, carbohydrates, and organic dyes, in comparison to collision-induced dissociation, a significantly wider fragment distribution was obtained, resulting in an information increase. Since the individual photons carry enough energy to post-ionize the nascent fragments, a permanent vacuum ultraviolet light exposure inside the ion trap potentially goes along with a general increase in detection capability.
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Affiliation(s)
- Stefanie Ickert
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
- Bundesanstalt für Materialforschung und -prüfung, Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Sebastian Beck
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Michael W Linscheid
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Jens Riedel
- Bundesanstalt für Materialforschung und -prüfung, Richard-Willstätter-Str. 11, 12489, Berlin, Germany.
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Han M, Kong J, Yuan J, He H, Hu J, Yang S, Li S, Zhang L, Sun C. Method development for simultaneous analyses of polycyclic aromatic hydrocarbons and their nitro-, oxy-, hydroxy- derivatives in sediments. Talanta 2019; 205:120128. [PMID: 31450405 DOI: 10.1016/j.talanta.2019.120128] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/25/2019] [Accepted: 07/08/2019] [Indexed: 12/28/2022]
Abstract
It is important to establish an available analytical method for polycyclic aromatic hydrocarbons (PAHs), nitrated PAHs (nitro-PAHs), oxygenated forms of PAHs (oxy-PAHs), and hydroxy-PAHs (OH-PAHs) in sediment samples due to the fact that they co-exist in various environmental mediates, particularly in sediment. In this study, an analytical method has been developed and validated for the quantification of PAHs, nitro-PAHs, oxy-PAHs, and OH-PAHs in sediment samples. The sediment samples were extracted by accelerated solvent extraction and cleaned up with SPE alumina-n combining with aminopropyl cartridges. The extracts were further fractionated by using different solvents. The fractionated extracts were analyzed via gas chromatography of single and triple quadrupole mass spectrometry in the electron ionization and negative ion chemical ionization with selective ion monitoring and selective reaction monitoring mode and liquid chromatography-triple quadrupole mass spectrometry. Each group of analytes was determined by different instrument modes such as GC-EI-SIM for PAHs, GC-NICI-SRM for nitro-PAHs, GC-EI-SRM for the oxy-PAHs and LC-ESI-MS/MS for OH-PAHs. A total of 44 analytes (16 PAHs, 14 nitro-PAHs, 9 oxy-PAHs, and 5 OH-PAHs) and 6 deuterated surrogates were performed. Most of recovery percentage varied from 52.8% up to 114.1% for the targeted analytes verified at three concentration levels (100 ng/g, 400 ng/g and 1000 ng/g for PAHs and 10 ng/g, 50 ng/g and 400 ng/g for their derivatives). The repeatability determined by the relative standard deviation percentage of triplicate trials was less than 10% for most analytes. The limit of detection ranged from 0.01 to 0.02 ng/g for PAHs, 0.002-0.067 ng/g for nitro-PAHs, 0.01-0.1 ng/g for oxy-PAHs, and 0.003-0.006 ng/g for OH-PAHs. Most of the compounds were detectable in the sediments collected from a local River, which illustrates the developed method could be a practical and suitable technique for detection of PAHs and their derivatives in real sediment samples.
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Affiliation(s)
- Mengshu Han
- The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China; Key Laboratory of Information and Computing Science Guizhou Province, Guizhou Normal University, Guiyang, 550001, China
| | - Jijie Kong
- The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Julong Yuan
- The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Huan He
- School of Environment, Nanjing Normal University, Nanjing, 210023, China; College of Ecological and Resource Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, 354300, China.
| | - Jiapeng Hu
- College of Ecological and Resource Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, 354300, China
| | - Shaogui Yang
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Limin Zhang
- School of Environment, Nanjing Normal University, Nanjing, 210023, China
| | - Cheng Sun
- The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
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Huang J, Yang B, Shu J, Zhang Z, Li Z, Jiang K. Kinetic Understanding of the Ultrahigh Ionization Efficiencies (up to 28%) of Excited-State CH 2Cl 2-Induced Associative Ionization: A Case Study with Nitro Compounds. Anal Chem 2019; 91:5605-5612. [PMID: 30841695 DOI: 10.1021/acs.analchem.8b04813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excited-state CH2Cl2-induced associative ionization (AI) is a newly developed ionization method that is very effective for oxygenated organics. However, this method is not widely known. In this study, an unprecedented ionization efficiency and ultrafast reaction rate of AI toward nitro compounds were observed. The ionization efficiencies of o-nitrotoluene (o-NT), m-nitrotoluene (m-NT), and nitrobenzene (NB) were as high as (28 ± 3)%, (27 ± 2)%, and (13 ± 1)%, respectively (∼1-3 ions for every 10 molecules). The measured reaction rate coefficients of these nitroaromatics were (0.5-1.3) × 10-7 molecule-1 cm3 s-1 (∼300 K). These unusual rate coefficients indicated strong long-range interactions between the two neutral reactants, which was regarded as a key factor leading to the ultrahigh ionization efficiency. The detection sensitivities of the nitroaromatics, (1.01-2.16) × 104 counts pptv-1 in 10 s acquisition time, were obtained by an AI time-of-flight mass spectrometer (AI-TOFMS). These experimental results not only provide new insight into the AI reaction but also reveal an excellent ionization method that can improve the detection sensitivity of nitroaromatics to an unprecedented degree.
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Affiliation(s)
- Jingyun Huang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Bo Yang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China
| | - Jinian Shu
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Zuojian Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Zhen Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China
| | - Kui Jiang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
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30
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Lin P, Fleming LT, Nizkorodov SA, Laskin J, Laskin A. Comprehensive Molecular Characterization of Atmospheric Brown Carbon by High Resolution Mass Spectrometry with Electrospray and Atmospheric Pressure Photoionization. Anal Chem 2018; 90:12493-12502. [PMID: 30293422 DOI: 10.1021/acs.analchem.8b02177] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Light-absorbing components of atmospheric organic aerosols, which are collectively termed "brown carbon" (BrC), are ubiquitous in the atmosphere. They affect absorption of solar radiation by aerosols in the atmosphere and human health as some of them have been identified as potential toxins. Understanding the sources, formation, atmospheric evolution, and environmental effects of BrC requires molecular identification and characterization of light-absorption properties of BrC chromophores. Identification of BrC components is challenging due to the complexity of atmospheric aerosols. In this study, we employ two complementary ionization techniques, atmospheric pressure photo ionization (APPI) and electrospray ionization (ESI), to obtain broad coverage of both polar and nonpolar BrC components using high-resolution mass spectrometry (HRMS). These techniques are combined with chromatographic separation of BrC compounds with high performance liquid chromatography (HPLC), characterization of their light absorption with a photodiode array (PDA) detector, and chemical composition with HRMS. We demonstrate that this approach enables more comprehensive characterization of BrC in biomass burning organic aerosols (BBOAs) emitted from test burns of sage brush biofuel. In particular, we found that nonpolar BrC chromophores such as PAHs are only detected using positive mode APPI. Meanwhile, negative mode ESI results in detection of polar compounds such as nitroaromatics, aromatic acids, and phenols. For the BrC material examined in this study, over 40% of the solvent-extractable BrC light absorption is attributed to water insoluble, nonpolar to semipolar compounds such as PAHs and their derivatives, which require APPI for their identification. In contrast, the polar, water-soluble BrC compounds, which are detected in ESI, account for less than 30% of light absorption by BrC.
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Affiliation(s)
- Peng Lin
- Department of Chemistry , Purdue University , West Lafayette , Indiana 47907-2084 , United States
| | - Lauren T Fleming
- Department of Chemistry , University of California , Irvine , California 92697-2025 , United States
| | - Sergey A Nizkorodov
- Department of Chemistry , University of California , Irvine , California 92697-2025 , United States
| | - Julia Laskin
- Department of Chemistry , Purdue University , West Lafayette , Indiana 47907-2084 , United States
| | - Alexander Laskin
- Department of Chemistry , Purdue University , West Lafayette , Indiana 47907-2084 , United States
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31
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Aromatic formulas in ambient PM2.5 samples from Hong Kong determined using FT-ICR ultrahigh-resolution mass spectrometry. Anal Bioanal Chem 2018; 410:6289-6304. [DOI: 10.1007/s00216-018-1239-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/17/2018] [Accepted: 06/28/2018] [Indexed: 11/26/2022]
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32
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Darvishnejad M, Ebrahimzadeh H. Magnetic halloysite nanotube/polyaniline/copper composite coupled with gas chromatography-mass spectrometry: A rapid approach for determination of nitro-phenanthrenes in water and soil samples. J Chromatogr A 2018; 1563:1-9. [PMID: 29880215 DOI: 10.1016/j.chroma.2018.05.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/23/2018] [Accepted: 05/26/2018] [Indexed: 01/12/2023]
Abstract
A fast, sensitive and reliable ultrasound-assisted magnetic dispersive solid-phase microextraction (UAMDSPME) setup was developed and evaluated for the enrichment of nitro- phenanthrenes compound in environmental samples prior to GC-MS determination. A new type of nanocomposite sorbent was made based on halloysite nanotubes (HNTs). HNTs is a type of natural material, have attracted great interest because of their large surface area and high chemical and thermal stability. The hybrid nanocomposite (magnetic HNT@PANI@Cu) was obtained by coating the magnetic HNTs by polyaniline (PANI) and afterwards decorating with metalic copper. Its morphology and surface properties were characterized using Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive spectroscopy and vibrating sample magnetometry. In this work several factors that may affect the extraction efficiencies such as desorption solvent type and its volume, sonication times for extraction and desorption, sorbent amount, organic modifier content, salt concentration and matrix effect were investigated in detail. Under the optimal conditions, the limit of detection (S/N = 3) was 0.25 ng L-1 and the linearity was in the range of 0.01-100 μg L-1. The method precision expressed as relative standard deviations (RSDs%) were 4.6-6.1% (intra-day), and 7.2-9.6% (inter-day). Finally, the presented method was successfully applied to the rapid determination of trace levels of nitro-phenanthrenes in spiked water and soil samples.
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33
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Kong J, Han M, Liu Y, He H, Gao Z, Xian Q, Yang S, Sun C, Li S, Zhang L. Analysis of trace-level nitrated polycyclic aromatic hydrocarbons in water samples by solid-phase microextraction with gas chromatography and mass spectrometry. J Sep Sci 2018; 41:2681-2687. [DOI: 10.1002/jssc.201701271] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 03/22/2018] [Accepted: 03/26/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Jijie Kong
- The State Key Laboratory of Pollution Control and Resource Reuse; School of the Environment; Nanjing University; Nanjing China
| | - Mengshu Han
- The State Key Laboratory of Pollution Control and Resource Reuse; School of the Environment; Nanjing University; Nanjing China
| | - Ying Liu
- The State Key Laboratory of Pollution Control and Resource Reuse; School of the Environment; Nanjing University; Nanjing China
| | - Huan He
- School of Environment; Nanjing Normal University; Nanjing China
| | - Zhanqi Gao
- State Environmental Protection Key Laboratory of Monitoring and Analysis for Organic pollutants in Surface Water; Environment Monitoring Center of Jiangsu Province; Nanjing China
| | - Qiming Xian
- The State Key Laboratory of Pollution Control and Resource Reuse; School of the Environment; Nanjing University; Nanjing China
| | - Shaogui Yang
- School of Environment; Nanjing Normal University; Nanjing China
| | - Cheng Sun
- The State Key Laboratory of Pollution Control and Resource Reuse; School of the Environment; Nanjing University; Nanjing China
| | - Shiyin Li
- School of Environment; Nanjing Normal University; Nanjing China
| | - Limin Zhang
- School of Environment; Nanjing Normal University; Nanjing China
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34
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Zheng X, Dupuis KT, Aly NA, Zhou Y, Smith FB, Tang K, Smith RD, Baker ES. Utilizing ion mobility spectrometry and mass spectrometry for the analysis of polycyclic aromatic hydrocarbons, polychlorinated biphenyls, polybrominated diphenyl ethers and their metabolites. Anal Chim Acta 2018; 1037:265-273. [PMID: 30292301 DOI: 10.1016/j.aca.2018.02.054] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 02/15/2018] [Accepted: 02/18/2018] [Indexed: 10/17/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are persistent environmental pollutants originating from incomplete combustion of organic materials and synthetic sources. PAHs, PCBs, and PBDEs have all been shown to have a significant effect on human health with correlations to cancer and other diseases. Therefore, measuring the presence of these xenobiotics in the environment and human body is imperative for assessing their health risks. To date, their analyses require both gas chromatography and liquid chromatography separations in conjunction with mass spectrometry measurements for detection of both the parent molecules and their hydroxylated metabolites, making their studies extremely time consuming. In this work, we characterized PAHs, PCBs, PBDEs and their hydroxylated metabolites using ion mobility spectrometry coupled with mass spectrometry (IMS-MS) and in combination with different ionization methods including electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI). The collision cross section and m/z trend lines derived from the IMS-MS analyses displayed distinct trends for each molecule type. Additionally, the rapid isomeric and molecular separations possible with IMS-MS showed great promise for quickly distinguishing the parent and metabolized PAH, PCB, and PDBE molecules in complex environmental and biological samples.
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Affiliation(s)
- Xueyun Zheng
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Kevin T Dupuis
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Noor A Aly
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Yuxuan Zhou
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Francesca B Smith
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Keqi Tang
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Richard D Smith
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States
| | - Erin S Baker
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States.
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35
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Cha E, Jeong ES, Han SB, Cha S, Son J, Kim S, Oh HB, Lee J. Ionization of Gas-Phase Polycyclic Aromatic Hydrocarbons in Electrospray Ionization Coupled with Gas Chromatography. Anal Chem 2018; 90:4203-4211. [PMID: 29461802 DOI: 10.1021/acs.analchem.8b00401] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, gas-phase polycyclic aromatic hydrocarbons (PAHs) as nonpolar compounds were ionized to protonated molecular ions [M + H]+ without radical cations and simultaneously analyzed using gas chromatography (GC)/electrospray ionization (ESI)-tandem mass spectrometry (MS/MS). The ionization profile, dissociation, and sensitivity were first investigated to understand the significant behavior of gas-phase PAHs under ESI. The formation of protonated molecular ions of PAHs was distinguished according to the analyte phase and ESI spray solvents. The protonated PAHs exhibited characteristic dissociations, such as H-loss, H2-loss, and acetylene-loss, via competition of internal energy. In addition, GC/ESI-MS/MS resulted in relatively lower concentration levels (better sensitivity) for the limits-of-detection (LODs) of PAHs than liquid chromatography (LC)/ESI-MS/MS, and it seems to result from the characteristic ionization mechanism of the gas-phase analyte under ESI. Furthermore, the LODs of gas-phase PAHs depended on molecular weight and proton affinity (PA). Consequently, we demonstrated the relationship among the analyte phases, sensitivities, and structural characteristics (molecular weight and PA) under ESI. The gas-phase PAHs provided enhanced protonation efficiency and sensitivity using GC/ESI-MS/MS, as their molecular weight and PA increased. Based on these results, we offered important information regarding the behavior of gas-phase analytes under ESI. Therefore, the present GC/ESI-MS/MS method has potential as an alternative method for simultaneous analysis of PAHs.
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Affiliation(s)
- Eunju Cha
- Doping Control Center , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Korea
| | - Eun Sook Jeong
- Doping Control Center , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Korea
| | - Sang Beom Han
- Department of Pharmaceutical Analysis, College of Pharmacy , Chung-Ang University , 84 Heukseok-ro , Dongjak-gu, Seoul 06974 , Korea
| | - Sangwon Cha
- Department of Chemistry , Hankuk University of Foreign Studies , 81 Oedae-ro , Mohyeon-myeon, Cheoin-gu, Yongin-si , Gyeongi-do 17035 , Korea
| | - Junghyun Son
- Doping Control Center , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Korea
| | - Sunghwan Kim
- Department of Chemistry , Kyungpook National University , 80 Daehakro , Buk-gu, Daegu 41566 , Korea
| | - Han Bin Oh
- Department of Chemistry , Sogang University , 35 Baekbeom-ro , Mapo-gu, Seoul 04107 , Korea
| | - Jaeick Lee
- Doping Control Center , Korea Institute of Science and Technology , Hwarang-ro 14-gil 5 , Seongbuk-gu, Seoul 02792 , Korea
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36
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Use of chemical conversion for determination of nitrated aromatic hydrocarbons using femtosecond ionization mass spectrometry. Anal Chim Acta 2017; 996:48-53. [DOI: 10.1016/j.aca.2017.09.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 09/16/2017] [Accepted: 09/27/2017] [Indexed: 11/23/2022]
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37
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Cao G, Ruan D, Chen Z, Hong Y, Cai Z. Recent developments and applications of mass spectrometry for the quality and safety assessment of cooking oil. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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38
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Li C, Tang H, Chen D, Ye C, Li L. An Integrated Ultrasonic Extraction and Cleanup Procedure for Determining PAHs and NPAHs in Ambient Air Particulates. Chromatographia 2017. [DOI: 10.1007/s10337-017-3360-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Deng K, Chan W. Development of a QuEChERS-Based Method for Determination of Carcinogenic 2-Nitrofluorene and 1-Nitropyrene in Rice Grains and Vegetables: A Comparative Study with Benzo[a]pyrene. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:1992-1999. [PMID: 28215082 DOI: 10.1021/acs.jafc.7b00051] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) are ubiquitous environmental pollutants attracting increasing attention because of their potent mutagenicity to humans. Previous studies of nitro-PAHs focused on investigating their formation mechanisms and detecting them in atmospheric environment; however, few studies have reported their occurrence in food samples, and regulations on nitro-PAHs are still lacking. We report in this study the development and application of a quick, easy, cheap, effective, rugged, and safe (QuEChERS) method for determination of nitro-PAHs in rice and vegetable samples. Analysis of the collected samples by the validated method revealed 1-nitropyrene and 2-nitrofluorene were widespread food contaminants. A comparative study with benzo[a]pyrene, the commonly used marker for PAH exposure, showed that carcinogenic nitro-PAHs existed in rice and vegetables at similar concentrations. Dietary exposure risk, which was estimated based on the surveillance data, suggested 3.28-5.03 ng/kg/day of nitro-PAHs exposure for Hong Kong citizens from rice grains and vegetables.
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Affiliation(s)
- Kailin Deng
- Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
| | - Wan Chan
- Environmental Science Programs and ‡Department of Chemistry, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong
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Bandowe BAM, Meusel H. Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) in the environment - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 581-582:237-257. [PMID: 28069306 DOI: 10.1016/j.scitotenv.2016.12.115] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/16/2016] [Accepted: 12/16/2016] [Indexed: 05/07/2023]
Abstract
Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) are derivatives of PAHs with at least one nitro-functional group (-NO2) on the aromatic ring. The toxic effects of several nitro-PAHs are more pronounced than those of PAHs. Some nitro-PAHs are classified as possible or probable human carcinogens by the International Agency for Research on Cancer. Nitro-PAHs are released into the environment from combustion of carbonaceous materials (e.g. fossil fuels, biomass, waste) and post-emission transformation of PAHs. Most studies on nitro-PAHs are about air (gas-phase and particulate matter), therefore less is known about the occurrence, concentrations, transport and fate of nitro-PAHs in soils, aquatic environment and biota. Studies on partition and exchange of nitro-PAHs between adjacent environmental compartments are also sparse. The concentrations of nitro-PAHs cannot easily be predicted from the intensity of anthropogenic activity or easily related to those of PAHs. This is because anthropogenic source strengths of nitro-PAHs are different from those of PAHs, and also nitro-PAHs have additional sources (formed by photochemical conversion of PAHs). The fate and transport of nitro-PAHs could be considerably different from their related PAHs because of their higher molecular weights and considerably different sorption mechanisms. Hence, specific knowledge on nitro-PAHs is required. Regulations on nitro-PAHs are also lacking. We present an extensive review of published literature on the sources, formation, physico-chemical properties, methods of determination, occurrence, concentration, transport, fate, (eco)toxicological and adverse health effects of nitro-PAHs. We also make suggestions and recommendations about data needs, and future research directions on nitro-PAHs. It is expected that this review will stimulate scientific discussion and provide the basis for further research and regulations on nitro-PAHs.
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Affiliation(s)
- Benjamin A Musa Bandowe
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012 Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Falkenplatz 16, 3012 Bern, Switzerland.
| | - Hannah Meusel
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
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Hayakawa K, Tang N, Toriba A. Recent analytical methods for atmospheric polycyclic aromatic hydrocarbons and their derivatives. Biomed Chromatogr 2016; 31. [DOI: 10.1002/bmc.3862] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 09/30/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Kazuichi Hayakawa
- Institute of Nature and Environmental Technology; Kanazawa University; Japan
| | - Ning Tang
- Institute of Nature and Environmental Technology; Kanazawa University; Japan
| | - Akira Toriba
- Institute of Medical, Pharmaceutical and Health Sciences; Kanazawa University; Japan
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Akutsu M, Sugie KI, Saito K. Analysis of 62 synthetic cannabinoids by gas chromatography-mass spectrometry with photoionization. Forensic Toxicol 2016; 35:94-103. [PMID: 28127409 PMCID: PMC5214763 DOI: 10.1007/s11419-016-0342-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 09/24/2016] [Indexed: 12/15/2022]
Abstract
Gas chromatography–mass spectrometry (GC–MS) in electron ionization (EI) mode is one of the most commonly used techniques for analysis of synthetic cannabinoids, because the GC–EI-MS spectra contain characteristic fragment ions for identification of a compound; however, the information on its molecular ions is frequently lacking. To obtain such molecular ion information, GC–MS in chemical ionization (CI) mode is frequently used. However, GC–CI-MS requires a relatively tedious process using reagent gas such as methane or isobutane. In this study, we show that GC–MS in photoionization (PI) mode provided molecular ions in all spectra of 62 synthetic cannabinoids, and 35 of the 62 compounds showed only the molecular radical cations. Except for the 35 compounds, the PI spectra showed very simple patterns with the molecular peak plus only a few fragment peak(s). An advantage is that the ion source for GC–PI-MS can easily be used for GC–EI-MS as well. Therefore, GC–EI/PI-MS will be a useful tool for the identification of synthetic cannabinoids contained in a dubious product. To the best of our knowledge, this is the first report to use GC–PI-MS for analysis of synthetic cannabinoids.
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Affiliation(s)
- Mamoru Akutsu
- Narcotics Control Department, Kanto-Shin'etsu Regional Bureau of Health and Welfare, Ministry of Health, Labour and Welfare, 1-2-1 Kudan-Minami, Chiyoda-ku, Tokyo, 102-8309 Japan
| | - Ken-Ichi Sugie
- Narcotics Control Department, Kanto-Shin'etsu Regional Bureau of Health and Welfare, Ministry of Health, Labour and Welfare, 1-2-1 Kudan-Minami, Chiyoda-ku, Tokyo, 102-8309 Japan
| | - Koichi Saito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 4-41 Ebara 2-chome, Shinagawa-ku, Tokyo, 142-8501 Japan
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Temperature Effects on Retention and Separation of PAHs in Reversed-Phase Liquid Chromatography Using Columns Packed with Fully Porous and Core-Shell Particles. J CHEM-NY 2016. [DOI: 10.1155/2016/7294105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Effects of temperature on the reversed-phase chromatographic behavior of PAHs were investigated on three columns. The first was the recent C18column (250 mm × 4.6 mm) packed with 5 µm core-shell particles while the others were more conventional C18columns (250 mm × 4.6 mm) packed with fully porous particles. Among the 16 PAHs studied, special attention has been paid to two pairs of PAHs, fluorene/acenaphthene and chrysene/benzo[a]anthracene, which often present coeluting problems. Due to the low surface area of the core-shell particles, lowest retention time of each PAH was highlighted and effects of the temperature on the separation of PAHs were negligible in regard to those using columns packed with fully porous particles. For each PAH studied, it was demonstrated that peaks were symmetrical and may be considered as Gaussian peaks when the column packed with core-shell particle was employed. In the best condition, the separation of PAHs was conducted at 16°C under very low pressure values (670–950 psi = 46–65 bars). Depending on PAHs, the limit of detection ranged from 0.88 to 9.16 μg L−1. Analysis of spiked acetonitrile samples with PAHs at 10 and 50 µg L−1and tap water at 10 µg L−1gave very good recoveries (94%–109.3%) and high precision (1.1%–3.5%).
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