1
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Bhakta N, Kaplitz AS, Black D, Schug KA. Characterization of a Soft Ionization by Chemical Reaction in Transfer Ion Source Hyphenated With Supercritical Fluid Chromatography-Tandem Mass Spectrometry. J Sep Sci 2024; 47:e202400500. [PMID: 39319578 DOI: 10.1002/jssc.202400500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/27/2024] [Accepted: 08/29/2024] [Indexed: 09/26/2024]
Abstract
A commercially available dielectric barrier discharge ionization (DBDI) source was tested with supercritical fluid chromatography-mass spectrometry (SFC-MS). The compound mixture investigated comprised caffeine, theobromine, theophylline, uracil, testosterone, and pyrene, diluted in methanol. Dynamic response ranges were evaluated with multiple injections at different concentrations. Precision studies demonstrated the robustness and sensitivity of the ionization source across a concentration range of 10-1000 ng/mL. Results from this experiment showed linear regression of 0.99 or greater for all analytes tested over the range with a relative standard deviation (RSD) of less than 10% down to 10 ng/mL for all analytes except theobromine, which had an RSD of less than 10% down to 25 ng/mL. Notably, this study marks the first investigation of sensitivity for coupling a commercial DBDI source with SFC; a limit of detection less than 1 ng/mL was achieved for all compounds. This study demonstrates chromatographic separation by SFC and MS analysis for compounds that ionize poorly using traditional atmospheric pressure ionization, such as polycyclic aromatic hydrocarbons. Combining SFC with the DBDI source opens promising avenues for analyzing compounds that were previously challenging to characterize with standard atmospheric pressure ionization techniques.
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Affiliation(s)
- Niray Bhakta
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
| | - Alexander S Kaplitz
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
| | - Destini Black
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
| | - Kevin A Schug
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA
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2
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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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3
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Schneider E, Giocastro B, Rüger CP, Adam TW, Zimmermann R. Detection of Polycyclic Aromatic Hydrocarbons in High Organic Carbon Ultrafine Particle Extracts by Electrospray Ionization Ultrahigh-Resolution Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:2019-2023. [PMID: 36194839 DOI: 10.1021/jasms.2c00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The detection of polycyclic aromatic hydrocarbons (PAHs) by electrospray ionization (ESI) without additional reagents or targeted setup changes to the ionization source was observed in ultrafine particle (UFP) extracts, with high organic carbon (OC) concentrations, generated by a combustion aerosol standard (CAST) soot generator. Particulate matter (PM) was collected on filters, extracted with methanol, and analyzed by ESI Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Next to oxygen-containing species, pure hydrocarbons were found to be one of the most abundant compound classes, detected as [M + Na]+ or [M + H]+ in ESI+ and mostly as [M - H]- in ESI-. The assigned hydrocarbon elemental compositions are identified as PAHs due to their high aromaticity index (AI > 0.67) and were additionally confirmed by MS/MS experiments as well as laser desorption ionization (LDI). Thus, despite the relatively low polarity, PAHs have to be considered in the molecular attribution of these model aerosols and/or fresh emissions with low salt content investigated by ESI.
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Affiliation(s)
- Eric Schneider
- Joint Mass Spectrometry Centre (JMSC), Chair of Analytical Chemistry, University Rostock, 18059Rostock, Germany
- Department Life, Light & Matter (LLM), University of Rostock, 18059Rostock, Germany
| | - Barbara Giocastro
- Institute of Chemistry and Environmental Engineering, University of the Bundeswehr Munich, 85579Neubiberg, Germany
| | - Christopher P Rüger
- Joint Mass Spectrometry Centre (JMSC), Chair of Analytical Chemistry, University Rostock, 18059Rostock, Germany
- Department Life, Light & Matter (LLM), University of Rostock, 18059Rostock, Germany
| | - Thomas W Adam
- Institute of Chemistry and Environmental Engineering, University of the Bundeswehr Munich, 85579Neubiberg, Germany
- Joint Mass Spectrometry Center (JMSC) at Comprehensive Molecular Analytics (CMA), Helmholtz Munich, 85764Neuherberg, Germany
| | - Ralf Zimmermann
- Joint Mass Spectrometry Centre (JMSC), Chair of Analytical Chemistry, University Rostock, 18059Rostock, Germany
- Department Life, Light & Matter (LLM), University of Rostock, 18059Rostock, Germany
- Joint Mass Spectrometry Center (JMSC) at Comprehensive Molecular Analytics (CMA), Helmholtz Munich, 85764Neuherberg, Germany
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4
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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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5
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Edney MK, He W, Smith EF, Wilmot E, Reid J, Barker J, Griffiths RL, Alexander MR, Snape CE, Scurr DJ. Time resolved growth of (N)-polycyclic aromatic hydrocarbons in engine deposits uncovered with OrbiSIMS depth profiling. Analyst 2022; 147:3854-3866. [DOI: 10.1039/d2an00798c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Insoluble carbonaceous deposits were grown in internal combustion engine components and interrogated by OrbiSIMS depth profiling, and we uncovered the composition and proposed time resolved growth mechanisms of these materials.
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Affiliation(s)
- Max K. Edney
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 7RD, UK
| | - Wenshi He
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Emily F. Smith
- Department of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Edward Wilmot
- Innospec Ltd., Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Jacqueline Reid
- Innospec Ltd., Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Jim Barker
- Innospec Ltd., Oil Sites Road, Ellesmere Port, Cheshire, CH65 4EY, UK
| | - Rian L. Griffiths
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Morgan R. Alexander
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Colin E. Snape
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 7RD, UK
| | - David J. Scurr
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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6
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Famiyeh L, Chen K, Xu J, Sun Y, Guo Q, Wang C, Lv J, Tang YT, Yu H, Snape C, He J. A review on analysis methods, source identification, and cancer risk evaluation of atmospheric polycyclic aromatic hydrocarbons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 789:147741. [PMID: 34058584 DOI: 10.1016/j.scitotenv.2021.147741] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/06/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) have gained attention because of their environmental persistence and effects on ecosystems, animals, and human health. They are mutagenic, carcinogenic, and teratogenic. The review provides background knowledge about their sources, metabolism, temporal variations, and size distribution in atmospheric particulate matter. The review article briefly discusses the analytical methods suitable for the extraction, characterization, and quantification of nonpolar and polar PAHs, addressing the challenges. Herein, we discussed the molecular diagnostic ratios (DRs), stable carbon isotopic analysis (SCIA), and receptor models, with much emphasis on the positive matrix factorization (PMF) model, for apportioning PAH sources. Among which, DRs and PCA identified as the most widely employed method, but their accuracy for PAH source identification has received global criticism. Therefore, the review recommends compound-specific isotopic analysis (CSIA) and PMF as the best alternative methods to provide detailed qualitative and quantitative source analysis. The compound-specific isotopic signatures are not affected by environmental degradation and are considered promising for apportioning PAH sources. However, isotopic fractions of co-eluted compounds like polar PAHs and aliphatic hydrocarbons make the PAHs isotopic fractions interpretation difficult. The interference of unresolved complex mixtures is a limitation to the application of CSIA for PAH source apportionment. Hence, for CSIA to further support PAH source apportionment, fast and cost-effective purification techniques with no isotopic fractionation effects are highly desirable. The present review explains the concept of stable carbon isotopic analysis (SCIA) relevant to PAH source analysis, identifying the techniques suitable for sample extract purification. We demonstrate how the source apportioned PAHs can be applied in assessing the health risk of PAHs using the incremental lifetime cancer risk (ILCR) model, and in doing so, we identify the key factors that could undermine the accuracy of the ILCR and research gaps that need further investigation.
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Affiliation(s)
- Lord Famiyeh
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Ke Chen
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Jingsha Xu
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Yong Sun
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Qingjun Guo
- Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
| | - Chengjun Wang
- College of Resources and Environmental Science, South-Central University of Nationalities, Wuhan 430074, China
| | - Jungang Lv
- Procuratoral Technology and Information Research Center, Supreme People's Procuratorate, Beijing 100144, China
| | - Yu-Ting Tang
- Department of Geographical Sciences, University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China
| | - Huan Yu
- Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Collin Snape
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, 199 Taikang E Rd, Ningbo 315100, China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province. University of Nottingham Ningbo China, Ningbo 315100, China.
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7
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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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8
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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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9
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Lin Y, Yang J, Fu Q, Ruan T, Jiang G. Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5687-5696. [PMID: 31045341 DOI: 10.1021/acs.est.9b01197] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Existence of emerging contaminants in the environment is of great importance for health risk assessment. The consensus on categories and numbers of the emerging contaminants in airborne fine particulate matter (PM2.5) is still extremely deficient. In this study, an in-house data set was constructed containing 890 unique ToxCast (Phase I and Phase II) chemicals. Occurrence and temporal variation of the chemicals was investigated by a suspect screening workflow in 60 PM2.5 samples from January to December of 2016 in Beijing. Eighty-nine compounds were identified in 12 substance categories, which covered a broad range of physicochemical properties. Quantification/semiquantification results showed that phthalates, phenols, and carboxylic esters were the three most predominant categories, with mean concentrations of 7.82, 4.42, and 4.11 ng/m3, respectively. Four diverse temporal variation patterns were discerned, which could be explained by correlations of chemical concentrations (or instrumental responses) with meteorological parameters. An extended retrospective suspect screening was also performed to reveal the presence of several analogues of the identified chemicals that were not included in the data set. Another 75 pollutants were tentatively recognized, and comparison of estimated composition profiles based on instrumental responses suggested the identified ToxCast chemicals are a notable subset of typical emerging contaminants. The results might facilitate ranking of organic pollutants with active biological effects in PM2.5 samples.
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Affiliation(s)
- Yongfeng Lin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Jing Yang
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring , China National Environmental Monitoring Center , Beijing 100012 , P. R. China
| | - Qiang Fu
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring , China National Environmental Monitoring Center , Beijing 100012 , P. R. China
| | - Ting Ruan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , P. R. China
- University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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10
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Son CE, Choi SS. Influence of smear matrix types on detection behaviors and efficiencies of polycyclic aromatic hydrocarbons using ion mobility spectrometry. CHEMOSPHERE 2019; 218:368-375. [PMID: 30476768 DOI: 10.1016/j.chemosphere.2018.11.116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/02/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Influence of smear matrix types on detection behaviors and efficiencies of polycyclic aromatic hydrocarbons (PAHs) with different molecular weights in ion mobility spectrometry (IMS) were investigated. Various smear matrices of stainless steel mesh (SM), cellulose paper (CP), and cotton fabric (CF) were employed. Anisole was used as the solvent and IMS analysis was performed without evaporation step of the solvent to apply charge transfer reactions between PAH molecules and the molecular ions of solvent. Shapes of reactant ion peaks (RIPs) were varied according to the smear matrix types. At the beginning of the sample inlet, intensity of RIPs of air and moisture notably decreased due to the lots of solvent vapor. The SM with good gas permeability showed relatively strong RIPs of air and moisture, whereas the CP with no gas permeability showed weak ones. Detection times and efficiencies of PAH ions were varied according to the smear matrix types as well as the kinds of PAHs. PAHs were on the whole detected well in 1-3 s after the sample inlet. Detection limits of PAHs measured using the SM were slightly better than those measured using the CP, while those measured using the CP were much better than those measured using the CF. The experimental results could be explained by structures of the smear matrices and evaporation behaviors of the PAH solutions.
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Affiliation(s)
- Chae Eun Son
- Department of Chemistry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Sung-Seen Choi
- Department of Chemistry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea.
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11
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Magi E, Di Carro M. Marine environment pollution: The contribution of mass spectrometry to the study of seawater. MASS SPECTROMETRY REVIEWS 2018; 37:492-512. [PMID: 27611504 DOI: 10.1002/mas.21521] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 08/29/2016] [Indexed: 05/26/2023]
Abstract
The study of marine pollution has been traditionally addressed to persistent chemicals, generally known as priority pollutants; a current trend in environmental analysis is a shift toward "emerging pollutants," defined as newly identified or previously unrecognized contaminants. The present review is focused on the peculiar contribution of mass spectrometry (MS) to the study of pollutants in the seawater compartment. The work is organized in five paragraphs where the most relevant groups of pollutants, both "classical" and "emerging," are presented and discussed, highlighting the relative data obtained by the means of different MS techniques. The hyphenation of MS and separative techniques, together with the development of different ion sources, makes MS and tandem MS the analytical tool of choice for the determination of trace organic contaminants in seawater. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:492-512, 2018.
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Affiliation(s)
- Emanuele Magi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
| | - Marina Di Carro
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
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12
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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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Li H, Zhu D, Lu X, Du H, Guan S, Chen Z. Determination and risk assessment of sixteen polycyclic aromatic hydrocarbons in vegetables. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:116-123. [PMID: 29087788 DOI: 10.1080/10934529.2017.1377573] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a group of organic environmental pollutants posing a potential risk to human health. This study was constructed to investigate the presence of 16 PAHs in six commonly consumed vegetables collected from the markets in Shandong, China by a quick, easy, cheap, effective, rugged, safe (QuEChERS)-based extraction method coupled with gas chromatography-mass spectrometry (GC-MS). Our results showed that the vegetables were polluted with PAHs at an alarming level, of which celery contained the highest total concentration of PAHs (Σ16 PAH), whereas cucumbers contained the lowest Σ16 PAH. Besides, the dietary exposure of PAHs was assessed in these vegetables based on the maximum Σ16 PAH. The results showed that the populations in Shandong were exposed to 23-213 ng/d of PAHs through these six vegetables, suggesting that vegetables are the major sources of PAHs in the diet. Hence, it is necessary to monitor the PAH levels in vegetables. Our study provides guidance for future legislative actions regarding PAH levels in vegetables in China.
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Affiliation(s)
- Huidong Li
- a Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences , Jinan , Shandong , China
- b Laboratory of Eco-Environmental Engineering Research , Huazhong Agricultural University , Wuhan , Hubei , China
- c Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety , Jinan , Shandong , China
| | - Duanwei Zhu
- b Laboratory of Eco-Environmental Engineering Research , Huazhong Agricultural University , Wuhan , Hubei , China
| | - Xiao Lu
- a Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences , Jinan , Shandong , China
- c Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety , Jinan , Shandong , China
| | - Hongxia Du
- a Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences , Jinan , Shandong , China
- c Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety , Jinan , Shandong , China
| | - Shuai Guan
- a Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences , Jinan , Shandong , China
- c Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety , Jinan , Shandong , China
| | - Zilei Chen
- a Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences , Jinan , Shandong , China
- c Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety , Jinan , Shandong , China
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14
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Lai B, Plan MR, Averesch NJ, Yu S, Kracke F, Lekieffre N, Bydder S, Hodson MP, Winter G, Krömer JO. Quantitative analysis of aromatics for synthetic biology using liquid chromatography. Biotechnol J 2016; 12. [DOI: 10.1002/biot.201600269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/26/2016] [Accepted: 08/02/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Bin Lai
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Manuel R. Plan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
- Metabolomics Australia (Queensland Node), The University of Queensland Brisbane Queensland Australia
| | - Nils J.H. Averesch
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Shiqin Yu
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Frauke Kracke
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Nicolas Lekieffre
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Sarah Bydder
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
| | - Mark P. Hodson
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
- Metabolomics Australia (Queensland Node), The University of Queensland Brisbane Queensland Australia
| | - Gal Winter
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Jens O. Krömer
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
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15
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Termopoli V, Famiglini G, Palma P, Cappiello A, Vandergrift GW, Krogh ET, Gill CG. Condensed Phase Membrane Introduction Mass Spectrometry with Direct Electron Ionization: On-line Measurement of PAHs in Complex Aqueous Samples. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:301-308. [PMID: 26471041 DOI: 10.1007/s13361-015-1285-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/19/2015] [Accepted: 09/29/2015] [Indexed: 06/05/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are USEPA regulated priority pollutants. Their low aqueous solubility requires very sensitive analytical methods for their detection, typically involving preconcentration steps. Presented is the first demonstrated ‘proof of concept’ use of condensed phase membrane introduction mass spectrometry (CP-MIMS) coupled with direct liquid electron ionization (DEI) for the direct, on-line measurement of PAHs in aqueous samples. DEI is very well suited for the ionization of PAHs and other nonpolar compounds, and is not significantly influenced by the co-elution of matrix components. Linear calibration data for low ppb levels of aqueous naphthalene, anthracene, and pyrene is demonstrated, with measured detection limits of 4 ppb. Analytical response times (t10%–90% signal rise) ranged from 2.8 min for naphthalene to 4.7 min for pyrene. Both intra- and interday reproducibility has been assessed (<3% and 5% RSD, respectively). Direct measurements of ppb level PAHs spiked in a variety of real, complex environmental sample matrices is examined, including natural waters, sea waters, and a hydrocarbon extraction production waste water sample. For these spiked, complex samples, direct PAH measurement by CP-MIMS-DEI yielded minimal signal suppression from sample matrix effects (81%–104%). We demonstrate the use of this analytical approach to directly monitor real-time changes in aqueous PAH concentrations with potential applications for continuous on-line monitoring strategies and binding/adsorption studies in heterogeneous samples.
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Affiliation(s)
- Veronica Termopoli
- 1Laboratorio LC-MS, Dipartimento di Scienze della Terra, della Vita e dell’Ambiente (DiSTeVA), Università degli studi di Urbino Carlo Bo, Urbino, Italy
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16
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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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17
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John GF, Yin F, Mulabagal V, Hayworth JS, Clement TP. Development and application of an analytical method using gas chromatography/triple quadrupole mass spectrometry for characterizing alkylated chrysenes in crude oil samples. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:948-956. [PMID: 24623700 DOI: 10.1002/rcm.6868] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 02/04/2014] [Accepted: 02/05/2014] [Indexed: 06/03/2023]
Abstract
RATIONALE Recent advances in analytical techniques have led to the development of gas chromatography/triple quadrupole mass spectrometry methods that allow the identification of target analytes in complex environmental samples. We have employed this technology to develop a method for characterizing alkylated chrysenes, which are environmental toxins that are resistant to weathering. METHODS An Agilent 7890 gas chromatograph coupled to an Agilent 7000B triple quadrupole mass spectrometer was used. The mass spectral fragmentation of seven commercially available alkylated chrysene standards was studied under full-scan and product-ion scan conditions. The calibration curves used were in the linear range with r(2) values greater than 0.99. The recovery and limit of detection of target analytes in the samples were in the range of 80-120% and 0.11-1.09 ng/mL, respectively. RESULTS The information inferred from full-scan and product-ion scan data was combined with literature data to develop a GC/MS/MS method for the identification and quantification of C1 -, C2 -, C3 -, and C4 -chrysene homologues. The method was employed to characterize MC252 crude oil which was released during the 2010 Deepwater Horizon accident. The results showed that the chrysene concentrations estimated by the proposed method were well within the range of previously reported values. CONCLUSIONS The proposed method is useful for analyzing chrysene and its alkylated homologues in crude oil samples.
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Affiliation(s)
- G F John
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA
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18
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Analyses of polycyclic aromatic hydrocarbons in seafood by capillary electrochromatography–atmospheric pressure chemical ionization/mass spectrometry. J Chromatogr A 2013; 1313:132-8. [DOI: 10.1016/j.chroma.2013.08.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/24/2013] [Accepted: 08/12/2013] [Indexed: 01/26/2023]
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19
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Purcaro G, Moret S, Conte LS. Overview on polycyclic aromatic hydrocarbons: occurrence, legislation and innovative determination in foods. Talanta 2012; 105:292-305. [PMID: 23598022 DOI: 10.1016/j.talanta.2012.10.041] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 10/08/2012] [Accepted: 10/11/2012] [Indexed: 11/24/2022]
Abstract
Polycyclic aromatic hydrocarbons are ubiquitous compounds, well-known to be carcinogenic, which can reach the food in different ways. Thus the analysis of such compounds has always been of great importance. The aim of the present review, is not only to give an overview of the most recent sample preparation and analytical approaches (such as pressurized liquid extraction, solid-phase microextraction, supercritical fluid extraction, etc.), but also to introduce such a topic to researchers who want to approach it for the first time; therefore, the most significant references related to general aspects, such as formation, toxicity, risk assessment, occurrence in food, are reported and briefly discussed.
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Affiliation(s)
- Giorgia Purcaro
- Department of Food Science, University of Udine, via Sondrio 2A, Udine 33100, Italy.
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20
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Ghislain T, Faure P, Michels R. Detection and monitoring of PAH and oxy-PAHs by high resolution mass spectrometry: comparison of ESI, APCI and APPI source detection. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2012; 23:530-536. [PMID: 22281813 DOI: 10.1007/s13361-011-0304-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 11/16/2011] [Accepted: 11/18/2011] [Indexed: 05/31/2023]
Abstract
The objective of this work was to compare direct infusion in a Q-TOF mass spectrometer through three different atmospheric pressure sources, electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI), and atmospheric pressure photoionization (APPI) coupled to a high resolution Q-TOF mass spectrometer. A complex mixture of PAH and oxy-PAHs, obtained after the air oxidation of fluoranthene on mineral substrates, was used to compare the different ionization abilities of these sources. Here, we propose analytical methods for the use of all sources. Final goal was to provide background to the choice of the most appropriate source in order to analyze complex organic mixtures as those encountered in polluted soils, water, sediments, as well as in petroleum.
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Affiliation(s)
- Thierry Ghislain
- G2R, Nancy-Université, CNRS, B.P. 239, 54506, Vandœuvre-lès-Nancy, France.
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21
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Gosetti F, Chiuminatto U, Mazzucco E, Robotti E, Calabrese G, Gennaro MC, Marengo E. Simultaneous determination of thirteen polycyclic aromatic hydrocarbons and twelve aldehydes in cooked food by an automated on-line solid phase extraction ultra high performance liquid chromatography tandem mass spectrometry. J Chromatogr A 2011; 1218:6308-18. [DOI: 10.1016/j.chroma.2011.06.085] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 06/15/2011] [Accepted: 06/22/2011] [Indexed: 11/26/2022]
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22
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Hollosi L, Wenzl T. Development and optimisation of a dopant assisted liquid chromatographic-atmospheric pressure photo ionisation-tandem mass spectrometric method for the determination of 15+1 EU priority PAHs in edible oils. J Chromatogr A 2010; 1218:23-31. [PMID: 21122869 DOI: 10.1016/j.chroma.2010.10.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 09/28/2010] [Accepted: 10/04/2010] [Indexed: 10/18/2022]
Abstract
European food legislation defines a set of 16 polycyclic aromatic hydrocarbons (PAHs) as of high concern for human health. The EU set contains structurally very similar PAHs with ring numbers between 4 and 6, and so raises some separation aspects and problems, which were not experienced with traditionally analysed PAHs. Many of the currently applied gas chromatographic mass spectrometric (GC-MS) methods suffer from separation problems, while high performance liquid chromatography with fluorescence detection (HPLC-FLD) is neither capable of detecting the whole set of EU priority PAHs nor does it (compared to GC-MS) allow structural identification. In addition HPLC-FLD shows limitations with difficult matrices due to interferences. The aim of this paper is to fill this gap by describing a liquid chromatographic dopant assisted atmospheric pressure photo ionisation tandem mass spectrometric (LC-DA-APPI-MS/MS) method for the determination of 15+1 EU priority PAHs in edible oil, which complies with the requirements set by European food legislation. Measurements were performed in positive ion mode. Anisole at a flow rate of 30 μl/min was used as dopant. Sample preparation was performed offline by donor-acceptor complex chromatography (DACC). Compared to HPLC-FLD methods the presented method enables the determination of all 15+1 EU priority PAHs at the low μg/kg concentration range including less fluorescence active compounds like benzo[j]fluoranthene and indeno[1,2,3-cd]pyrene. By analysing four reference materials it could be demonstrated that this method provides accurate results and is sufficiently sensitive for food control purposes. Statistically significant differences between the reference values and the measured analyte contents were not found. The method performs well also for very complex samples. Repeatability relative standard deviations (RSDr) of the determination of the target PAHs in olive oil were for most analytes below 5%. The limit of detection (LOD) of the method met the requirement set by EU legislation (0.3 μg/kg).
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Affiliation(s)
- Laszlo Hollosi
- European Commission, Directorate General Joint Research Centre, Institute for Reference Materials and Measurements, Retieseweg 111, B-2440 Geel, Belgium
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23
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Plaza-Bolaños P, Frenich AG, Vidal JLM. Polycyclic aromatic hydrocarbons in food and beverages. Analytical methods and trends. J Chromatogr A 2010; 1217:6303-26. [DOI: 10.1016/j.chroma.2010.07.079] [Citation(s) in RCA: 190] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 07/26/2010] [Accepted: 07/30/2010] [Indexed: 10/19/2022]
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24
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Kubatova A. Critical factors in chemical characterization for the evaluation of decontamination in solids using advanced oxidation. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2009; 44:1052-1068. [PMID: 19847695 DOI: 10.1080/10934520903005004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Advanced oxidation technologies (AOT) have been applied to the treatment of numerous organic pollutants embedded in solid matrices (e.g., soil, sediments, sludge, etc.). Given potentially strong matrix-analyte interactions in solids, chemical characterization of both the target contaminants and their oxidation products is critical for the evaluation of any decontamination method. The success of AOT applications has been evaluated either directly (based on the removal of original contaminants, extent of mineralization, and/or formation of by-products), or indirectly, e.g., based on toxicity or chemical oxygen demand. Since indirect methods do not provide comprehensive understanding of the pollutants' fate, direct analytical approaches are covered in this review while focusing on sample preparation and detailed chromatographic characterization, assessing the strengths and weaknesses of these methods. The significance of sample preparation, in particular extraction, is discussed with respect to the nature of matrix-analyte interactions, as those may also affect the selection of the remediation method. The ultimate goal of this review is the presentation of methods employed to achieve mass balance closure, which is essential to ensure the full understanding of degradation pathways.
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Affiliation(s)
- Alena Kubatova
- Chemistry Department, University of North Dakota, Grand Forks, North Dakota 58202, USA.
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25
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Buonasera K, D’Orazio G, Fanali S, Dugo P, Mondello L. Separation of organophosphorus pesticides by using nano-liquid chromatography. J Chromatogr A 2009; 1216:3970-6. [DOI: 10.1016/j.chroma.2009.03.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Revised: 02/26/2009] [Accepted: 03/06/2009] [Indexed: 11/26/2022]
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26
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Cai SS, Syage JA, Hanold KA, Balogh MP. Ultra Performance Liquid Chromatography−Atmospheric Pressure Photoionization-Tandem Mass Spectrometry for High-Sensitivity and High-Throughput Analysis of U.S. Environmental Protection Agency 16 Priority Pollutants Polynuclear Aromatic Hydrocarbons. Anal Chem 2009; 81:2123-8. [DOI: 10.1021/ac802275e] [Citation(s) in RCA: 126] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sheng-Suan Cai
- Syagen Technology, Incorporated, 1411 Warner Avenue, Tustin, California 92780, and Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757
| | - Jack A. Syage
- Syagen Technology, Incorporated, 1411 Warner Avenue, Tustin, California 92780, and Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757
| | - Karl A. Hanold
- Syagen Technology, Incorporated, 1411 Warner Avenue, Tustin, California 92780, and Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757
| | - Michael P. Balogh
- Syagen Technology, Incorporated, 1411 Warner Avenue, Tustin, California 92780, and Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757
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