1
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Pervukhin VV, Sheven DG. Aerodynamic thermal breakup droplet ionization combined with a β-irradiation source for mass-spectrometric analysis of samples in a nonpolar solvent. Talanta 2024; 279:126573. [PMID: 39068828 DOI: 10.1016/j.talanta.2024.126573] [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: 01/23/2024] [Revised: 06/24/2024] [Accepted: 07/13/2024] [Indexed: 07/30/2024]
Abstract
A method is proposed for increasing the number of ions during mass-spectrometric analysis of samples in a nonpolar solvent (benzene). For this purpose, aerodynamic thermal breakup droplet ionization (ATBDI) with the impact of β-radiation on the aerosol droplets used in ATBDI was evaluated. This modification of the method, which we named β-ATBDI, allows to shift a nonvolatile analyte (trinitrotoluene in the negative ionization region and cocaine in the positive ionization region, as an example) into a gas phase as an aerosol at room temperature (in contrast to atmospheric pressure chemical ionization). In addition, β-ATBDI enables a researcher to distinguish mass spectrometric peaks of the compounds located in an aerosol droplet from compounds located outside the droplet, i.e., to identify background peaks. Also briefly discussed the ionization of two antibiotics-azithromycin in methylene chloride and sulfadiazine in salt water with β-ATBDI, ATBDI and electrospray ionization source.
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Affiliation(s)
- Viktor V Pervukhin
- Nikolaev Institute of Inorganic Chemistry of SB RAS, Acad. Lavrentieva Ave., 3, 630090, Novosibirsk, Russia
| | - Dmitriy G Sheven
- Nikolaev Institute of Inorganic Chemistry of SB RAS, Acad. Lavrentieva Ave., 3, 630090, Novosibirsk, Russia.
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2
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Tu CF, Chen YC. Utilizing a Metal Inlet Coiled with Copper Wire as the Ion Source for Ambient Ionization Mass Spectrometry. Anal Chem 2024; 96:661-667. [PMID: 38170959 DOI: 10.1021/acs.analchem.3c02589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In ambient ionization mass spectrometry (MS), a customized metal inlet is typically adapted to the orifice of the mass spectrometer for ease of introduction of the sample. We herein explore that the metal inlet coiled with a copper wire (∼50 μm) can be directly used as an ion source to induce corona discharge-like processes for ionization of analytes in the gas phase. When the metal inlet is subjected to a high voltage in the mass spectrometer, the electric field provided by the mass spectrometer enables the generation of corona discharge to ionize volatile/semivolatile analytes derived from the sample in the condensed phase. The limit of detection for azulene derived from the aqueous sample was as low as ∼1 pM. Moreover, we also demonstrated the feasibility of coupling ultraviolet-visible absorption spectroscopy with MS by using the metal inlet coiled with a thin copper wire as the interface. Integration of these two techniques enables the simultaneous acquisition of spectra from both instruments for quantitative and qualitative analysis of the sample. Furthermore, we showed that polar and nonpolar analytes in a mixture can be acquired in the same mass spectrum by simply depositing a sample droplet (∼20 μL) on a dielectric substrate near the copper wire-coiled metal inlet of the mass spectrometer. The ionization processes involved both electrospray ionization and corona discharge. To demonstrate the applicability of our method for detecting nonpolar and polar analytes in complex samples, we spiked a nonpolar analyte, benzo[a]pyrene, to a spice sample and successfully detected analytes with different polarities using our approach.
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Affiliation(s)
- Chi-Feng Tu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- International College of Semiconductor Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
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3
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Pizzo JS, Cruz VHM, Manin LP, Santos PDS, Silva GR, Souza PM, Figueiredo AL, Santos OO, Visentainer JV. First report on quality and purity assessment of sweet almond oil in Brazilian body oils by gas chromatography and mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2023; 58:e4900. [PMID: 36688359 DOI: 10.1002/jms.4900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/16/2022] [Accepted: 09/21/2022] [Indexed: 06/17/2023]
Abstract
Sweet almond oil is a raw material with high-added value used in different products. Then, the aim of this study is to evaluate the quality and purity of 10 body oils based on sweet almond oils currently available in the Brazilian market. Fatty acid composition and triacylglycerol (TAG) profile were determined by gas chromatography with flame ionization detector (GC-FID) and atmospheric solids analysis probe mass spectrometry (ASAP-MS), respectively. The authenticity of samples was assessed using an analytical curve equation. Soybean oil was chosen as the adulterant because it is the cheapest vegetable oil commercialized in Brazil. Hierarchical clustering analysis (HCA) in conjunction with ASAP-MS classified product samples according to the type of vegetable oil (soybean and sweet almond oils). The addition of soybean oil (8.79% to 99.70%) was confirmed in samples. However, only two samples stated in their label the presence of soybean oil as an ingredient. These findings highlight the need for better oversight by regulatory bodies to ensure that consumers acquire high quality and authentic products based on equally high quality and purity of sweet almond oils.
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Affiliation(s)
- Jessica S Pizzo
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Victor H M Cruz
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Luciana P Manin
- Post-Graduate Program in Food Science, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Patricia D S Santos
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Geovane R Silva
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Patrícia M Souza
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Alisson L Figueiredo
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Oscar O Santos
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
| | - Jesuí V Visentainer
- Department of Chemistry, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
- Post-Graduate Program in Food Science, State University of Maringá (UEM), Maringá, Paraná, 87020-900, Brazil
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4
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Shiea J, Lin HJ, Bhat SM, Lee CY, Huang MZ, Ponnusamy VK, Cheng SC. Thin layer chromatography/desorption flame-induced atmospheric pressure chemical ionization/mass spectrometry for the analysis of volatile and semi-volatile mixtures. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2022; 36:e9409. [PMID: 36194496 DOI: 10.1002/rcm.9409] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED Flame-induced atmospheric pressure chemical ionization (FAPCI) has been used to directly characterize chemical compounds on a glass rod and drug tablet surfaces. In this study, FAPCI was further applied to interface thin layer chromatography (TLC) and mass spectrometry (MS) for mixture analysis. METHODS A micro-sized oxyacetylene flame was generated using a small concentric tube system. Hot gas flow and primary reactive species from the micro-flame were directed toward a developed TLC gel plate to thermally desorb and ionize analytes on the gel surface. The resulting analyte ions subsequently entered the MS inlet for detection. RESULTS A 1-1.5-mm-wide light-brown line was observed on the TLC plate after the desorption FAPCI/MS (DFAPCI/MS) analysis, revealing that the gel surface withstood a high temperature from the impact of the micro-flame. Volatile and semi-volatile chemical compounds, including amine and amide standards, drugs, and aromatherapy oils, were successfully desorbed, ionized, and detected using this TLC/DFAPCI/MS. The limit of detection of TLC-DFAPCI/MS was determined to be 5 ng/spot for dibenzylamine and ethenzamide. CONCLUSIONS TLC/DFAPCI/MS is one of the simplest TLC-MS interfaces showing the advantages such as low costs and an easy set up. The technique is useful for characterizing thermally stable volatile and semi-volatile compounds in a mixture.
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Affiliation(s)
- Jentaie Shiea
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
- Rapid Screening Research Center for Toxicology and Biomedicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsing-Jung Lin
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | | | - Chi-Yang Lee
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Min-Zong Huang
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Vinoth Kumar Ponnusamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sy-Chyi Cheng
- Biotechnology Center in Southern Taiwan, Academia Sinica, Tainan, Taiwan
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
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5
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Teng K, Shi J, Zhu Y, Yu Q. Micro-tapered aperture nebulization ionization for versatile mass spectrometry analysis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4886-4892. [PMID: 36420596 DOI: 10.1039/d2ay01657e] [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 bloom of new ionization sources is promoting the prosperity and application of mass spectrometry analysis. In this study, we introduced a new (high) voltage-free ionization method termed micro-tapered aperture nebulization ionization (MANI), which only requires the use of a common micro-tapered aperture atomizer to operate. It is found that liquid nebulization on this type of atomizer can induce ionization of the dissolved analytes in the droplets without the assistance of additional voltage and gas. By assembling the commercially available atomizer module into a 3D-printed chamber, a compact MANI source was constructed and then characterized. This source has a high ion yield and satisfactory quantitative performance, and it is preferably used to analyze aqueous solutions. Furthermore, it exhibits broad applicability and can be easily extended to multiple applications, including liquid extraction surface analysis of solid samples and direct analysis of gaseous analytes via secondary spray ionization. In short, the MANI source is a simple, safe, green, and versatile tool that can assist mass spectrometers to perform routine and diverse analysis.
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Affiliation(s)
- Keguo Teng
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.
| | - Jianbo Shi
- Open FIESTA, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yanping Zhu
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.
| | - Quan Yu
- Division of Advanced Manufacturing, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.
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Wang YW, Prabhu GRD, Hsu CY, Urban PL. Tuning Electrospray Ionization with Low-Frequency Sound. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:1883-1890. [PMID: 36040001 DOI: 10.1021/jasms.2c00179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Electrospray ionization (ESI) mass spectrometry (MS) is one of the key techniques used in biomolecular analysis nowadays. It relies on formation of polydisperse microdroplets, which undergo desolvation and liberate ions to the gas phase. Here we demonstrate low-frequency-sound-modulated ESI for analysis of biomolecules. By using a low-frequency (50-350 Hz) sound, it is possible to deflect electrospray microdroplets toward the mass spectrometer's orifice. Microdroplets of different sizes are deflected to a different extent leading to a partial size segregation. This effect leads to either an increase or decrease of MS signal intensity as well as signal-to-noise ratio. It also affects the selectivity of the ESI-MS analysis. The observations are rationalized by taking into account different pathways of ion formation and the likelihood of deflecting microdroplets of certain size. The online ESI-MS observations are supported with offline shadowgraphs obtained at varied sound frequencies, signal amplitudes, and phase shifts.
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Affiliation(s)
- Yi-Wun Wang
- Department of Chemistry, National Tsing Hua University 101, Section 2, Kuang-Fu Rd, Hsinchu 300044, Taiwan
| | - Gurpur Rakesh D Prabhu
- Department of Chemistry, National Tsing Hua University 101, Section 2, Kuang-Fu Rd, Hsinchu 300044, Taiwan
| | - Chun-Yao Hsu
- Department of Chemistry, National Tsing Hua University 101, Section 2, Kuang-Fu Rd, Hsinchu 300044, Taiwan
| | - Pawel L Urban
- Department of Chemistry, National Tsing Hua University 101, Section 2, Kuang-Fu Rd, Hsinchu 300044, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University 101, Section 2, Kuang-Fu Rd, Hsinchu 300044, Taiwan
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7
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Pizzo JS, Cruz VH, Santos PD, Silva GR, Souza PM, Manin LP, Santos OO, Visentainer JV. Instantaneous characterization of crude vegetable oils via triacylglycerols fingerprint by atmospheric solids analysis probe tandem mass spectrometry with multiple neutral loss scans. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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8
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Shen B, Yang X, Noll SE, Yang X, Liu Y, Jia S, Zhao J, Zheng S, Zare RN, Zhong H. Cell-Based Ambient Venturi Autosampling and Matrix-Assisted Laser Desorption Ionization Mass Spectrometric Imaging of Secretory Products. Anal Chem 2022; 94:3456-3466. [PMID: 35157418 DOI: 10.1021/acs.analchem.1c03625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cell-based ambient Venturi autosampling device was established for the monitoring of dynamic cell secretions in response to chemical stimulations in real time with temporal resolution on the order of a second. Detection of secretory products of cells and screening of bioactive compounds are primarily performed on an ambient autosampling probe and matrix-assisted laser desorption ionization (MALDI) mass spectrometry. It takes advantage of the Venturi effect in which the fluid flowing through an inlet capillary tube is automatically fed into a parallel array of multiple outlet capillaries. Cells are incubated inside the inlet capillary tube that is connected with either a syringe pump or liquid chromatography (LC) for the transfer of single compounds or mixtures, respectively. Secretory products were continuously pushed into the outlet capillaries and then spotted into a compressed thin film of the matrix material 9-aminoacridine for MALDI mass spectrometric imaging. In physiological pH, without the use of high voltages and without the use of chemical derivatizations, this platform can be applied to the direct assay of neurotransmitters or other secretory products released from cells in response to the stimulation of individual compounds or LC-separated eluates of natural mixtures. It provides a new way to identify bioactive compounds with a detection limit down to 0.04 fmol/pixel.
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Affiliation(s)
- Baojie Shen
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Xiaoyu Yang
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Sarah Elizabeth Noll
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Xiaojie Yang
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Yanping Liu
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Shanshan Jia
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Jiaxing Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, P. R. China
| | - Shi Zheng
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China
| | - Richard N Zare
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Hongying Zhong
- Laboratory of Mass Spectrometry, College of Chemistry, Key Laboratory of Pesticides and Chemical Biology, Central China Normal University, Ministry of Education, Wuhan, Hubei 430079, P. R. China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Nanning, Guangxi 530004, P. R. China
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9
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Sun J, Yin Y, Li W, Jin O, Na N. CHEMICAL REACTION MONITORING BY AMBIENT MASS SPECTROMETRY. MASS SPECTROMETRY REVIEWS 2022; 41:70-99. [PMID: 33259644 DOI: 10.1002/mas.21668] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Chemical reactions conducted in different media (liquid phase, gas phase, or surface) drive developments of versatile techniques for the detection of intermediates and prediction of reasonable reaction pathways. Without sample pretreatment, ambient mass spectrometry (AMS) has been applied to obtain structural information of reactive molecules that differ in polarity and molecular weight. Commercial ion sources (e.g., electrospray ionization, atmospheric pressure chemical ionization, and direct analysis in real-time) have been reported to monitor substrates and products by offline reaction examination. While the interception or characterization of reactive intermediates with short lifetime are still limited by the offline modes. Notably, online ionization technologies, with high tolerance to salt, buffer, and pH, can achieve direct sampling and ionization of on-going reactions conducted in different media (e.g., liquid phase, gas phase, or surface). Therefore, short-lived intermediates could be captured at unprecedented timescales, and the reaction dynamics could be studied for mechanism examinations without sample pretreatments. In this review, via various AMS methods, chemical reaction monitoring and mechanism elucidation for different classifications of reactions have been reviewed. The developments and advances of common ionization methods for offline reaction monitoring will also be highlighted.
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Affiliation(s)
- Jianghui Sun
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
| | - Yiyan Yin
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
| | - Weixiang Li
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
| | - Ouyang Jin
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
| | - Na Na
- Key Laboratory of Radiopharmaceuticals Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
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10
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Recent Advances of Ambient Mass Spectrometry Imaging and Its Applications in Lipid and Metabolite Analysis. Metabolites 2021; 11:metabo11110780. [PMID: 34822438 PMCID: PMC8625079 DOI: 10.3390/metabo11110780] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 01/02/2023] Open
Abstract
Ambient mass spectrometry imaging (AMSI) has attracted much attention in recent years. As a kind of unlabeled molecular imaging technique, AMSI can enable in situ visualization of a large number of compounds in biological tissue sections in ambient conditions. In this review, the developments of various AMSI techniques are discussed according to one-step and two-step ionization strategies. In addition, recent applications of AMSI for lipid and metabolite analysis (from 2016 to 2021) in disease diagnosis, animal model research, plant science, drug metabolism and toxicology research, etc., are summarized. Finally, further perspectives of AMSI in spatial resolution, sensitivity, quantitative ability, convenience and software development are proposed.
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11
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12
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Otsuka Y. Direct Liquid Extraction and Ionization Techniques for Understanding Multimolecular Environments in Biological Systems (Secondary Publication). Mass Spectrom (Tokyo) 2021; 10:A0095. [PMID: 34249586 PMCID: PMC8246329 DOI: 10.5702/massspectrometry.a0095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 11/23/2022] Open
Abstract
A combination of direct liquid extraction using a small volume of solvent and electrospray ionization allows the rapid measurement of complex chemical components in biological samples and visualization of their distribution in tissue sections. This review describes the development of such techniques and their application to biological research since the first reports in the early 2000s. An overview of electrospray ionization, ion suppression in samples, and the acceleration of specific chemical reactions in charged droplets is also presented. Potential future applications for visualizing multimolecular environments in biological systems are discussed.
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Affiliation(s)
- Yoichi Otsuka
- Graduate School of Science, Osaka University, 1–1 Machikaneyama-cho, Toyonaka, Osaka 560–0043, Japan
- JST, PRESTO, 4–1–8 Honcho, Kawaguchi, Saitama 332–0012, Japan
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13
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Oliveira LFC, de Morais DR, Correa DN, de Morais Campêlo J, Sussulini A, Eberlin MN, Santos JM. Rapid and direct detection of artificially aged papers employing easy ambient sonic-spray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9046. [PMID: 33434951 DOI: 10.1002/rcm.9046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
RATIONALE The effort to make fake documents look real leads to the use of crickets and beverages to produce artificially aged papers, as land titles, based on yellowing caused by the use of these methods. An old practice in Brazil, called "cricketing", has led to the misappropriation of Brazilian land using these documents. We propose a rapid, simple, instantaneous and non-destructive method to identify artificially aged papers by easy ambient sonic-spray ionization mass spectrometry (EASI-MS) analysis. METHODS Three typical aging procedures were used to obtain artificially aged papers using coffee, cola drink, and crickets, with the papers being analyzed by EASI-MS. Multivariate statistical analyses were performed on the data to find the sample groups and to study the most relevant ions of each ageing procedure. High-resolution MS (HRMS) was used to obtain the exact masses and attribute formulae to relevant ions present in the samples. RESULTS The combination of EASI-MS and multivariate statistical analyses allowed us to identify the most relevant ions to classify the adulteration of documents and HRMS identified most of these relevant ions. TMS fingerprinting in combination with multivariate analysis also demonstrated that this approach can qualitatively differentiate all the examined paper samples. CONCLUSIONS We developed a cheap, fast and easy method that can help to elucidate counterfeit documents that have been artificially aged, helping to identify chemical additives and one that can be used in forensic laboratories.
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Affiliation(s)
- Luan Felipe Campos Oliveira
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- LaBIOmics, Department of Analytical Chemistry, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Damila Rodrigues de Morais
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Deleon Nascimento Correa
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Technical-Scientific Police Superintendency, Criminalistic Institute Dr. Octávio Eduardo de Brito Alvarenga -IC-SPTC-SP, São Paulo, SP, 05507-060, Brazil
| | | | - Alessandra Sussulini
- LaBIOmics, Department of Analytical Chemistry, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
| | - Marcos Nogueira Eberlin
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Mackenzie Presbyterian University, São Paulo, SP, 01302-907, Brazil
| | - Jandyson Machado Santos
- ThoMSon Mass Spectrometry Laboratory, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-970, Brazil
- Department of Chemistry, Federal Rural University of Pernambuco-UFRPE, Recife, PE, 52171-900, Brazil
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14
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Chen L, Ghiasvand A, Rodriguez ES, Innis PC, Paull B. Applications of nanomaterials in ambient ionization mass spectrometry. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Otsuka Y, Kamihoriuchi B, Takeuchi A, Iwata F, Tortorella S, Matsumoto T. High-Spatial-Resolution Multimodal Imaging by Tapping-Mode Scanning Probe Electrospray Ionization with Feedback Control. Anal Chem 2021; 93:2263-2272. [PMID: 33400515 DOI: 10.1021/acs.analchem.0c04144] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Direct extraction and ionization techniques using minute amounts of solvent can be employed for the rapid analysis of chemical components in a sample without any sample preparation steps. This type of approach is important for mass spectrometry imaging of samples with multiple chemical components that have different spatial distributions (i.e., biological tissues). To improve the spatial resolution of such imaging, it is necessary to reduce the solvent volume for extraction and deliver it to the sample surface. This report describes a feedback control system applied to tapping-mode scanning probe electrospray ionization. By combining the measurement technique of capillary probe vibration with the dynamic distance control system between the probe and the sample, the vibration amplitude of the probe is maintained while the probe scans over uneven samples. This method allows simultaneous high-resolution imaging of molecular distribution, surface topography, and amplitude/phase changes in the probe vibration. Such multimodal imaging is demonstrated on rhodamine B thin films in microwells and on a mouse brain tissue section. This technique can generally be applied to examine the multidimensional molecular distribution and the surface profiles of various objects.
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Affiliation(s)
- Yoichi Otsuka
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Bui Kamihoriuchi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Aya Takeuchi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Futoshi Iwata
- Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
| | - Sara Tortorella
- Molecular Horizon Srl, Via Montelino 30, 06084 Bettona, Perugia, Italy
| | - Takuya Matsumoto
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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16
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Pevzner A, Feldheim G, Zaltsman A, Elisha S, Heleg-Shabtai V, Ron I. Sonic-spray introduction of liquid samples to hand-held Ion mobility spectrometry analyzers. Analyst 2021; 146:1940-1948. [DOI: 10.1039/d0an02401e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Sonic spray vaporization of liquid samples for introduction to hand-held ion mobility spectrometry vapor analyzers.
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Affiliation(s)
- Alexander Pevzner
- Department of Physical Chemistry
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
| | - Gil Feldheim
- Department of Physical Chemistry
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
| | - Amalia Zaltsman
- Department of Physical Chemistry
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
| | - Shmuel Elisha
- Environmental Physics Department
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
| | - Vered Heleg-Shabtai
- Department of Physical Chemistry
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
| | - Izhar Ron
- Department of Physical Chemistry
- Israel Institute for Biological Research
- Ness-Ziona 74100
- Israel
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17
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18
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Ranganathan N, Lozier AM, Rawson MC, Johnson MB, Li P. Direct analysis of surface chemicals using vibrating sharp-edge spray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8902. [PMID: 32692897 PMCID: PMC7811172 DOI: 10.1002/rcm.8902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/26/2020] [Accepted: 07/19/2020] [Indexed: 05/06/2023]
Abstract
RATIONALE Direct analysis of chemicals on a surface using mass spectrometry (MS) is of great importance in forensics, food and drug safety, environmental monitoring, and defense. Solvent extraction-based surface analysis offers a convenient way of controlling the desorption conditions and applying internal standards. To date, it mainly relies on a separate electrospray process to nebulize and ionize the solvents. Here, we report a simple and stand-alone ionization system for the solvent extraction-based surface analysis without the need for high voltage, based on vibrating sharp-edge spray ionization (VSSI). METHODS We modified the original VSSI device and developed a stand-alone, integrated surface sampling, and ionization system for MS analysis. By incorporating a micropipette-based solvent dispenser with the VSSI device, the new system performs solvent extraction and ionization, and still maintains a small footprint. RESULTS We demonstrated a four order-of-magnitude linear response for glucose spotted on a glass surface with a limit of detection (LOD) of 0.1 pg/mm2 . We further characterized the performance of this method with a series of compounds and demonstrated a similar LOD to literature values obtained by desorption electrospray ionization. Finally, we applied this method to quantitatively measure the concentration of a pesticide ametryn on spinach surfaces. We demonstrated good linearity (R2 = 0.99) for ametryn with surface densities in the range of 8-800 pg/mm2 and an LOD of 9 pg/mm2 . CONCLUSIONS We have demonstrated a simple, effective, direct ambient-ionization method that is highly sensitive to molecules on a wide range of surfaces. The flexibility, small footprint, low cost, and voltage-free nature of this method make it an attractive technique for direct surface sample analysis using MS.
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Affiliation(s)
- Nandhini Ranganathan
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Austin M. Lozier
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | - Michael C. Rawson
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
| | | | - Peng Li
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV, USA
- Correspondence should be addressed to P.L. ()
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Li N, Nie H, Jiang L, Ruan G, Du F, Liu H. Recent advances of ambient ionization mass spectrometry imaging in clinical research. J Sep Sci 2020; 43:3146-3163. [PMID: 32573988 DOI: 10.1002/jssc.202000273] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/03/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
The structural information and spatial distribution of molecules in biological tissues are closely related to the potential molecular mechanisms of disease origin, transfer, and classification. Ambient ionization mass spectrometry imaging is an effective tool that provides molecular images while describing in situ information of biomolecules in complex samples, in which ionization occurs at atmospheric pressure with the samples being analyzed in the native state. Ambient ionization mass spectrometry imaging can directly analyze tissue samples at a fairly high resolution to obtain molecules in situ information on the tissue surface to identify pathological features associated with a disease, resulting in the wide applications in pharmacy, food science, botanical research, and especially clinical research. Herein, novel ambient ionization techniques, such as techniques based on spray and solid-liquid extraction, techniques based on plasma desorption, techniques based on laser desorption ablation, and techniques based on acoustic desorption were introduced, and the data processing of ambient ionization mass spectrometry imaging was briefly reviewed. Besides, we also highlight recent applications of this imaging technology in clinical researches and discuss the challenges in this imaging technology and the perspectives on the future of the clinical research.
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Affiliation(s)
- Na Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
| | - Honggang Nie
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
| | - Liping Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
| | - Guihua Ruan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
| | - Fuyou Du
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, P. R. China
- College of Biological and Environmental Engineering, Changsha University, Changsha, P. R. China
| | - Huwei Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
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20
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Recent advances of ambient mass spectrometry imaging for biological tissues: A review. Anal Chim Acta 2020; 1117:74-88. [DOI: 10.1016/j.aca.2020.01.052] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 12/30/2022]
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21
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McCullough BJ, Patel K, Francis R, Cain P, Douce D, Whyatt K, Bajic S, Lumley N, Hopley C. Atmospheric Solids Analysis Probe Coupled to a Portable Mass Spectrometer for Rapid Identification of Bulk Drug Seizures. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:386-393. [PMID: 32031401 DOI: 10.1021/jasms.9b00020] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The emergence of ambient ionization techniques and their combination with smaller, cheaper mass spectrometers is beginning to make real the possibility of mass spectrometry measurements being made routinely outside of traditional laboratory settings. Here, we describe the development of an atmospheric solids analysis probe (ASAP) source for a commercially available miniaturized, single-quadrupole mass spectrometer and subsequent modification of the instrument to allow it to run as a deployable system; we further go on to describe the application of this instrument to the identification of the contents of drug seizures. For the drug seizure analysis, a small quantity of the material (powder, tablet, resin, etc.) was dissolved in ethanol and shaken to extract the analytes, the resulting solutions were then sampled by dipping a sealed glass capillary into the solution prior to analysis by ASAP-MS. Identification of the contents of the seizures was carried out using a NIST searching approach utilizing a bespoke spectral library containing 46 compounds representative of those most commonly encountered in UK forensic laboratories. In order to increase confidence in identification the library sample and subsequent analyses were carried out using a four-channel acquisition method; each channel in this method used a different cone voltage (15, 30, 50, and 70 V) inducing differing levels of in-source fragmentation in each channel; the match score across each channel was then used for identification. Using this developed method, a set of 50 real-life drug samples was analyzed with each of these being identified correctly using the library searching method.
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Affiliation(s)
- Bryan J McCullough
- National Measurement Laboratory , LGC , Queen's Road , Teddington TW11 0LY , UK
| | - Kirtan Patel
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - Ryan Francis
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - Peter Cain
- Eurofins Forensic Services , Queens Road , Teddington TW11 0LY , UK
| | - David Douce
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Kate Whyatt
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Steve Bajic
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Nicola Lumley
- Waters Corporation , Stamford Avenue , Wilmslow SK9 4AX , UK
| | - Chris Hopley
- National Measurement Laboratory , LGC , Queen's Road , Teddington TW11 0LY , UK
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22
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Zhang P, Zhang L, Shi J, Zhang N, Li Y, Wu T, Cheng Z. TLC-electrostatic field induced spray ionization-MS analysis of diverse structural skeletons and its coupling with TLC bioautography for characterization of lipase inhibitory components in American ginseng. J Pharm Biomed Anal 2019; 174:486-494. [DOI: 10.1016/j.jpba.2019.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 10/26/2022]
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Lehmann EL, Arruda MAZ. Minimalist strategies applied to analysis of forensic samples using elemental and molecular analytical techniques - A review. Anal Chim Acta 2019; 1063:9-17. [PMID: 30967190 DOI: 10.1016/j.aca.2019.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 01/29/2019] [Accepted: 02/02/2019] [Indexed: 10/27/2022]
Abstract
Forensic science is an emerging field driven by a number of factors, and the development of different methods of analyses, instruments, and techniques is of great help to experts in the field. Sampling and sample preparation in forensic cases are of utmost importance, and therefore, the methods for processing (or not) the samples are critical for acquiring accurate results. Some alternatives for attaining the minimalist concept, i.e. little or no sample treatment, are discussed in this review. For elemental analysis, analytical techniques, such as X-ray spectrometry, laser-ablation mass spectrometry, laser-induced breakdown spectrometry, inductively coupled plasma mass spectrometry and optical emission spectrometry, and Mössbauer spectrometry are overviewed. Molecular analysis, such as Raman spectroscopy, and ambient ionization mass spectrometry are discussed. Some representative examples are presented that involve in situ analysis, counterfeit bank notes and documents, post-mortem and bone analyses, and forensic analysis of drugs, glass, fingerprints, biological fluids and explosives.
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Affiliation(s)
- Eraldo Luiz Lehmann
- National Institute of Science and Technology, INCT for Bioanalytics, Institute of Chemistry, University of Campinas, Unicamp, P.O. Box 6154, 13083-970, Campinas, SP, Brazil; Group of Spectrometry, Sample Preparation and Mechanization - GEPAM, Institute of Chemistry, University of Campinas, Unicamp, P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Marco Aurélio Zezzi Arruda
- National Institute of Science and Technology, INCT for Bioanalytics, Institute of Chemistry, University of Campinas, Unicamp, P.O. Box 6154, 13083-970, Campinas, SP, Brazil; Group of Spectrometry, Sample Preparation and Mechanization - GEPAM, Institute of Chemistry, University of Campinas, Unicamp, P.O. Box 6154, 13083-970, Campinas, SP, Brazil.
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24
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Fast screening and quantitative mass spectral imaging of thin-layer chromatography plates with flowing atmospheric-pressure afterglow high-resolution mass spectrometry. Anal Bioanal Chem 2019; 411:6213-6225. [DOI: 10.1007/s00216-019-02013-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/25/2019] [Accepted: 07/01/2019] [Indexed: 01/21/2023]
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25
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Perez CJ, Bagga AK, Prova SS, Yousefi Taemeh M, Ifa DR. Review and perspectives on the applications of mass spectrometry imaging under ambient conditions. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33 Suppl 3:27-53. [PMID: 29698560 DOI: 10.1002/rcm.8145] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/06/2018] [Accepted: 04/12/2018] [Indexed: 05/18/2023]
Abstract
Ambient mass spectrometry (AMS)-based techniques are performed under ambient conditions in which the ionization and desorption occur in the open environment allowing the direct analysis of molecules with minimal or no sample preparation. A selected group of AMS techniques demonstrate imaging capabilities that can provide information about the localization of molecules on complex sample surfaces such as biological tissues. 2D, 3D, and multimodal imaging have unlocked an array of applications to systematically address complex problems in many areas of research such as drug monitoring, natural products, forensics, and cancer diagnostics. In the present review, we summarize recent advances in the field with respect to the implementation of new ambient ionization techniques and current applications in the last 5 years. In more detail, we mainly focus on imaging applications in topics related to animal whole bodies and tissues, single cells, cancer diagnostics and biomarkers, microbial cultures and co-cultures, plant and natural product metabolomics, and forensic applications. Finally, we discuss new areas of research, future perspectives, and the overall direction that the field may take in the years to come.
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Affiliation(s)
- Consuelo J Perez
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
| | - Aafreen K Bagga
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
| | - Shamina S Prova
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
| | - Maryam Yousefi Taemeh
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
| | - Demian R Ifa
- Centre for Research in Mass Spectrometry, Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, Canada
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26
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Wan L, Gong G, Liang H, Huang G. In situ analysis of unsaturated fatty acids in human serum by negative-ion paper spray mass spectrometry. Anal Chim Acta 2019; 1075:120-127. [PMID: 31196417 DOI: 10.1016/j.aca.2019.05.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/21/2019] [Accepted: 05/23/2019] [Indexed: 02/08/2023]
Abstract
In situ identification and quantification of unsaturated fatty acid (FA) C=C positional isomers in human serum is herein performed by negative-ion paper spray (PS) mass spectrometry. Typically, by direct application of an alternating current (AC) voltage to the wet paper, the PS ionization could perform stably in the negative-ion mode without severe discharge. We suppose epoxidation reaction between unsaturated C=C bonds and reactive oxidative species might be initiated by a mild electrical discharge, which could be rapidly and controllably produced via a low amplitude AC voltage. Upon collision-induce dissociation (CID), the epoxide was fragmented to generate diagnostic ions indicating the C=C location. The intensity of the characteristic product ions could also be used for absolute quantification of the FA C=C positional isomers. The limits of detection (LODs) and limits of quantification (LOQs) were roughly in the range of 0.0178-0.0506 μM and 0.0218-0.3634 μM for standard FAs. Without the additional sample preparations or reactive chemical reagents, epoxidation of unsaturated FAs and ionization of the epoxide could be achieved in one-step by negative-ion mode PS, which enable a promising methodology for on-site clinical diagnosis.
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Affiliation(s)
- Lingzhong Wan
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei, 230026, China
| | - Guanda Gong
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China (USTC), Hefei, 230026, China; Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, 230026, China
| | - Hao Liang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China (USTC), Hefei, 230026, China; Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, 230026, China
| | - Guangming Huang
- Department of Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China (USTC), Hefei, 230026, China; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
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Sherma J, Rabel F. Advances in the thin layer chromatographic analysis of counterfeit pharmaceutical products: 2008–2019. J LIQ CHROMATOGR R T 2019. [DOI: 10.1080/10826076.2019.1610772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Joseph Sherma
- Department of Chemistry, Lafayette College, Easton, PA, USA
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GUO XY, HUANG XM, ZHAI JF, BAI H, LI XX, MA XX, MA Q. Research Advances in Ambient Ionization and Miniature Mass Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61145-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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29
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Progress of Sonic-Spray Ionization Mass Spectrometry and Its Applications. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(18)61132-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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30
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Wu ML, Chen TY, Chen YC, Chen YC. Carbon Fiber Ionization Mass Spectrometry for the Analysis of Analytes in Vapor, Liquid, and Solid Phases. Anal Chem 2017; 89:13458-13465. [DOI: 10.1021/acs.analchem.7b03736] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Min-Li Wu
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Te-Yu Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yen-Chun Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yu-Chie Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 300, Taiwan
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31
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Internal Extractive Electrospray Ionization Mass Spectrometry for Quantitative Determination of Fluoroquinolones Captured by Magnetic Molecularly Imprinted Polymers from Raw Milk. Sci Rep 2017; 7:14714. [PMID: 29116200 PMCID: PMC5676746 DOI: 10.1038/s41598-017-15202-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/23/2017] [Indexed: 12/28/2022] Open
Abstract
Antibiotics contamination in food products is of increasing concern due to their potential threat on human health. Herein solid-phase extraction based on magnetic molecularly imprinted polymers coupled with internal extractive electrospray ionization mass spectrometry (MMIPs-SPE-iEESI-MS) was designed for the quantitative analysis of trace fluoroquinolones (FQs) in raw milk samples. FQs in the raw milk sample (2 mL) were selectively captured by the easily-lab-made magnetic molecularly imprinted polymers (MMIPs), and then directly eluted by 100 µL electrospraying solvent biased with +3.0 kV to produce protonated FQs ions for mass spectrometric characterization. Satisfactory analytical performance was obtained in the quantitative analysis of three kinds of FQs (i.e., norfloxacin, enoxacin, and fleroxacin). For all the samples tested, the established method showed a low limit of detection (LOD ≤ 0.03 µg L−1) and a high analysis speed (≤4 min per sample). The analytical performance for real sample analysis was validated by a nationally standardized protocol using LC-MS, resulting in acceptable relative error values from −5.8% to +6.9% for 6 tested samples. Our results demonstrate that MMIPs-SPE-iEESI-MS is a new strategy for the quantitative analysis of FQs in complex biological mixtures such as raw milk, showing promising applications in food safety control and biofluid sample analysis.
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Mavroudakis L, Mavrakis E, Kouvarakis A, Pergantis SA. Determination of chlorate, perchlorate and bromate anions in water samples by microbore reversed-phase liquid chromatography coupled to sonic-spray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:911-918. [PMID: 28370581 DOI: 10.1002/rcm.7866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/17/2017] [Accepted: 03/23/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE Sonic-spray ionization mass spectrometry (SSI-MS) has recently been shown to provide similar mass spectra to those generated by electrospray ionization mass spectrometry for a wide range of compounds, i.e. from small inorganic species to peptides, proteins and numerous other biomolecules. However, limited information about this new ionization technique, such as sensitivity, limit of detection and quantification accuracy, has been reported. In particular, its coupling to liquid chromatography needs further development and assessment, along with the introduction of a broad range of applications. METHODS A high-efficiency glass pneumatic nebulizer, used for decades for sample introduction in atomic spectrometry, was used for the SSI-MS analysis of chlorate (ClO3- ), perchlorate (ClO4- ) and bromate (BrO3- ) anions, following their separation using reversed-phase microbore high-performance liquid chromatography and tandem mass spectrometry (MS/MS) operated in selected reaction monitoring mode. RESULTS The developed and optimized microbore HPLC/SSI-MS/MS technique exhibited low limits of detection: 5.3 ng L-1 for chlorate, 10 ng L-1 for perchlorate and 33.7 ng L-1 for bromate, and provided reliable and accurate measurements of chlorate concentrations in water samples as demonstrated when comparing it with Ion Chromatography-Conductivity Detection (IC-CD), the benchmark technique for ion quantitation. CONCLUSIONS This is the first time that the use of HPLC/SSI-MS/MS has been reported for the detection and quantitation of chlorate, perchlorate and bromate in water samples. In addition, the exceptionally low LODs achieved using SSI render the technique competitive with the established and dominating electrospray ionization technique. Here, we have demonstrated that a commercially available high-efficiency glass pneumatic nebulizer can also be used, without any further modification, as an efficient gas-phase ion source. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Leonidas Mavroudakis
- Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Heraklion, 71003, Greece
| | - Emmanouil Mavrakis
- Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Heraklion, 71003, Greece
| | - Antonis Kouvarakis
- Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Heraklion, 71003, Greece
| | - Spiros A Pergantis
- Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Heraklion, 71003, Greece
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Yang Y, Huang Y, Wu J, Liu N, Deng J, Luan T. Single-cell analysis by ambient mass spectrometry. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.02.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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35
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Ambient Desorption/Ionization. Mass Spectrom (Tokyo) 2017. [DOI: 10.1007/978-3-319-54398-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Rejšek J, Vrkoslav V, Vaikkinen A, Haapala M, Kauppila TJ, Kostiainen R, Cvačka J. Thin-Layer Chromatography/Desorption Atmospheric Pressure Photoionization Orbitrap Mass Spectrometry of Lipids. Anal Chem 2016; 88:12279-12286. [DOI: 10.1021/acs.analchem.6b03465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Rejšek
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo
nám. 2, 166 10 Prague 6, Czech Republic
- Department
of Analytical Chemistry, Faculty of Science, Charles University in Prague, 128 43 Prague 2, Czech Republic
| | - Vladimír Vrkoslav
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo
nám. 2, 166 10 Prague 6, Czech Republic
| | - Anu Vaikkinen
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Markus Haapala
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Tiina J. Kauppila
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Risto Kostiainen
- Division
of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
| | - Josef Cvačka
- The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo
nám. 2, 166 10 Prague 6, Czech Republic
- Department
of Analytical Chemistry, Faculty of Science, Charles University in Prague, 128 43 Prague 2, Czech Republic
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Huynh V, Phelps MS, Golden TD, Verbeck GF. Direct analyte-probed nanoextraction (DAPNe) coupled to matrix-assisted laser desorption ionization (MALDI) for examination of the ink chemistry on documents. Forensic Chem 2016. [DOI: 10.1016/j.forc.2016.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Black C, Chevallier OP, Elliott CT. The current and potential applications of Ambient Mass Spectrometry in detecting food fraud. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.06.005] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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39
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Li Y, Wang J, Zhan L, Wleklinski M, Wang J, Xiong C, Liu H, Zhou Y, Nie Z. The bridge between thin layer chromatography-mass spectrometry and high-performance liquid chromatography-mass spectrometry: The realization of liquid thin layer chromatography-mass spectrometry. J Chromatogr A 2016; 1460:181-9. [DOI: 10.1016/j.chroma.2016.07.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 10/21/2022]
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40
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Jiang J, Chen S, Li M, Li H, Chen Y. Selective Determination of Dimethyl Sulfide in Seawater Using Reactive Extractive Electrospray Ionization Mass Spectrometry. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1199559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jie Jiang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Songhui Chen
- China National Supervision and Testing Center of Fine Chemicals, Product Quality Supervising and Inspecting Institute of Taizhou City, Taizhou, China
| | - Ming Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing, China
| | - Hongmei Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing, China
| | - Yan Chen
- China National Supervision and Testing Center of Fine Chemicals, Product Quality Supervising and Inspecting Institute of Taizhou City, Taizhou, China
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41
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Correa DN, Santos JM, Eberlin LS, Eberlin MN, Teunissen SF. Forensic Chemistry and Ambient Mass Spectrometry: A Perfect Couple Destined for a Happy Marriage? Anal Chem 2016; 88:2515-26. [DOI: 10.1021/acs.analchem.5b02397] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deleon N. Correa
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas—UNICAMP, Campinas, São Paulo 13083-970, Brazil
- Technical-Scientific Police Superintendence—IC-SPTC-SP, São Paulo, São Paulo 05507-06, Brazil
| | - Jandyson M. Santos
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas—UNICAMP, Campinas, São Paulo 13083-970, Brazil
| | - Livia S. Eberlin
- Department
of Chemistry, The University of Texas at Austin, Austin, Texas 78712 United States
| | - Marcos N. Eberlin
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas—UNICAMP, Campinas, São Paulo 13083-970, Brazil
| | - Sebastiaan F. Teunissen
- ThoMSon
Mass Spectrometry Laboratory, University of Campinas—UNICAMP, Campinas, São Paulo 13083-970, Brazil
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42
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Kaddi CD, Bennett RV, Paine MRL, Banks MD, Weber AL, Fernández FM, Wang MD. DetectTLC: Automated Reaction Mixture Screening Utilizing Quantitative Mass Spectrometry Image Features. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:359-65. [PMID: 26508443 PMCID: PMC5003040 DOI: 10.1007/s13361-015-1293-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 10/05/2015] [Accepted: 10/07/2015] [Indexed: 05/25/2023]
Abstract
Full characterization of complex reaction mixtures is necessary to understand mechanisms, optimize yields, and elucidate secondary reaction pathways. Molecular-level information for species in such mixtures can be readily obtained by coupling mass spectrometry imaging (MSI) with thin layer chromatography (TLC) separations. User-guided investigation of imaging data for mixture components with known m/z values is generally straightforward; however, spot detection for unknowns is highly tedious, and limits the applicability of MSI in conjunction with TLC. To accelerate imaging data mining, we developed DetectTLC, an approach that automatically identifies m/z values exhibiting TLC spot-like regions in MS molecular images. Furthermore, DetectTLC can also spatially match m/z values for spots acquired during alternating high and low collision-energy scans, pairing product ions with precursors to enhance structural identification. As an example, DetectTLC is applied to the identification and structural confirmation of unknown, yet significant, products of abiotic pyrazinone and aminopyrazine nucleoside analog synthesis. Graphical Abstract ᅟ.
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Affiliation(s)
- Chanchala D Kaddi
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Rachel V Bennett
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- The Coca-Cola Company, 1 Coca-Cola Plaza, Atlanta, GA, 30313, USA
| | - Martin R L Paine
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Mitchel D Banks
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Arthur L Weber
- SETI Institute, Ames Research Center, Moffett Field, CA, 94035, USA
| | - Facundo M Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - May D Wang
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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43
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Huang K, Li M, Li H, Li M, Jiang Y, Fang X. Accurate quantification of creatinine in serum by coupling a measurement standard to extractive electrospray ionization mass spectrometry. Sci Rep 2016; 6:19283. [PMID: 26759071 PMCID: PMC4725369 DOI: 10.1038/srep19283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/07/2015] [Indexed: 11/17/2022] Open
Abstract
Ambient ionization (AI) techniques have been widely used in chemistry, medicine, material science, environmental science, forensic science. AI takes advantage of direct desorption/ionization of chemicals in raw samples under ambient environmental conditions with minimal or no sample preparation. However, its quantitative accuracy is restricted by matrix effects during the ionization process. To improve the quantitative accuracy of AI, a matrix reference material, which is a particular form of measurement standard, was coupled to an AI technique in this study. Consequently the analyte concentration in a complex matrix can be easily quantified with high accuracy. As a demonstration, this novel method was applied for the accurate quantification of creatinine in serum by using extractive electrospray ionization (EESI) mass spectrometry. Over the concentration range investigated (0.166 ~ 1.617 μg/mL), a calibration curve was obtained with a satisfactory linearity (R2 = 0.994), and acceptable relative standard deviations (RSD) of 4.6 ~ 8.0% (n = 6). Finally, the creatinine concentration value of a serum sample was determined to be 36.18 ± 1.08 μg/mL, which is in excellent agreement with the certified value of 35.16 ± 0.39 μg/mL.
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Affiliation(s)
- Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Ming Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Hongmei Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Mengwan Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - You Jiang
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Xiang Fang
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
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44
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Affiliation(s)
- Julia Laskin
- Physical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-88, Richland, WA 99352
| | - Ingela Lanekoff
- Department of Chemistry-BMC, Uppsala University, Box 599, 751 24 Uppsala, Sweden
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45
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Brown TA, Hosseini-Nassab N, Chen H, Zare RN. Observation of electrochemically generated nitrenium ions by desorption electrospray ionization mass spectrometry. Chem Sci 2016; 7:329-332. [PMID: 28791096 PMCID: PMC5518571 DOI: 10.1039/c5sc02939b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 10/08/2015] [Indexed: 01/18/2023] Open
Abstract
We report the observation of the electrochemically generated nitrenium ions of 4,4'-dimethyoxydiphenylamine and di-p-tolylamine in solution by mass spectrometry. This setup takes inspiration from desorption electrospray ionization mass spectrometry to sample directly from the surface of a rotating waterwheel working electrode for mass spectrometric analysis. Detection of the 4,4'-dimethyoxydiphenylamine nitrenium ion was expected based upon para-methoxy resonance stabilization, whereas observation of the di-p-tolylamine nitrenium ion might be unexpected because resonance stabilization from the para-substituted position is unavailable. However, the short timescale analysis of the setup allows for the isolation of the di-p-tolylamine nitrenium ion, which is electrogenerated in solution and detected mass spectrometrically.
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Affiliation(s)
- Timothy A Brown
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
| | | | - Hao Chen
- Center for Intelligent Chemical Instrumentation , Department of Chemistry and Biochemistry and Edison Biotechnology Institute , Ohio University , Athens , OH 45701-2979 , USA .
| | - Richard N Zare
- Department of Chemistry , Stanford University , Stanford , CA 94305-5080 , USA .
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46
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Yu C, Qian X, Chen Y, Yu Q, Ni K, Wang X. Microfluidic self-aspiration sonic-spray ionization chip with single and dual ionization channels for mass spectrometry. RSC Adv 2016. [DOI: 10.1039/c6ra07959h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
In consideration of the miniaturization, integration, and universal disadvantages of microfluidic chip-based ionization coupled with mass spectrometry, this study proposed a novel microfluidic self-aspiration sonic-spray ionization chip.
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Affiliation(s)
- Cilong Yu
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Xiang Qian
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Yan Chen
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen 518055
- China
| | - Quan Yu
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Kai Ni
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
| | - Xiaohao Wang
- Division of Advanced Manufacturing
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen
- China
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47
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Flowing atmospheric pressure afterglow combined with laser ablation for direct analysis of compounds separated by thin-layer chromatography. Anal Bioanal Chem 2015; 408:815-23. [PMID: 26563110 PMCID: PMC4709388 DOI: 10.1007/s00216-015-9165-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 10/26/2015] [Accepted: 10/29/2015] [Indexed: 11/06/2022]
Abstract
A thin-layer chromatography-mass spectrometry (TLC-MS) setup for characterization of low molecular weight compounds separated on standard TLC plates has been constructed. This new approach successfully combines TLC separation, laser ablation, and ionization using flowing atmospheric pressure afterglow (FAPA) source. For the laser ablation, a low-priced 445-nm continuous-wave diode laser pointer, with a power of 1 W, was used. The combination of the simple, low-budget laser pointer and the FAPA ion source has made this experimental arrangement broadly available, also for small laboratories. The approach was successfully applied for the characterization of low molecular weight compounds separated on TLC plates, such as a mixture of pyrazole derivatives, alkaloids (nicotine and sparteine), and an extract from a drug tablet consisting of paracetamol, propyphenazone, and caffeine. The laser pointer used was capable of ablating organic compounds without the need of application of any additional substances (matrices, staining, etc.) on the TLC spots. The detection limit of the proposed method was estimated to be 35 ng/cm2 of a pyrazole derivative. Schematic illustration of new TLC-FAPA setup with diode laser ablation ![]()
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48
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Ren Y, Chiang S, Zhang W, Wang X, Lin Z, Ouyang Z. Paper-capillary spray for direct mass spectrometry analysis of biofluid samples. Anal Bioanal Chem 2015; 408:1385-90. [PMID: 26521181 DOI: 10.1007/s00216-015-9129-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/09/2015] [Accepted: 10/16/2015] [Indexed: 12/27/2022]
Abstract
Paper spray has been developed as an ambient ionization method for direct analysis of biological samples using mass spectrometry. While distinct advantages of paper spray have been demonstrated, especially for quantitative analysis and design of disposable sample cartridges, the need for improvement has also been recognized, especially for the use with miniature mass spectrometers. In this study, we made an improvement to the sampling and ionization by adding a capillary emitter to the paper substrate to produce a paper-capillary spray, which has been shown to have significant, positive impact on the sensitivity and reproducibility for direct mass spectrometry analysis. The paper-capillary devices were fabricated and the effects of the geometry, the treatment of the capillary emitters, as well as the sample disposition methods were characterized. The method's analytical performance was also characterized for analysis of therapeutic drugs in blood samples. Quantitation of cotinine in blood using a commercial triple quadrupole and sitagliptin (Januvia®) in blood using a desktop Mini 12 ion trap mass spectrometer was also demonstrated.
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Affiliation(s)
- Yue Ren
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Spencer Chiang
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Wenpeng Zhang
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Xiao Wang
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Ziqing Lin
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Zheng Ouyang
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA. .,Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA. .,Department of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA.
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49
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Hu B, Xin GZ, So PK, Yao ZP. Thin layer chromatography coupled with electrospray ionization mass spectrometry for direct analysis of raw samples. J Chromatogr A 2015; 1415:155-60. [DOI: 10.1016/j.chroma.2015.08.055] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 08/23/2015] [Accepted: 08/24/2015] [Indexed: 01/05/2023]
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50
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Brown TA, Chen H, Zare RN. Detection of the Short-Lived Radical Cation Intermediate in the Electrooxidation ofN,N-Dimethylaniline by Mass Spectrometry. Angew Chem Int Ed Engl 2015; 54:11183-5. [DOI: 10.1002/anie.201506316] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 11/09/2022]
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