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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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Shi W, Wang Y. Fluorescent Photoelectric Detection of Peroxide Explosives Based on a Time Series Similarity Measurement Method. SENSORS (BASEL, SWITZERLAND) 2023; 23:8264. [PMID: 37837094 PMCID: PMC10575408 DOI: 10.3390/s23198264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
Due to the characteristics of peroxide explosives, which are difficult to detect via conventional detection methods and have high explosive power, a fluorescent photoelectric detection system based on fluorescence detection technology was designed in this study to achieve the high-sensitivity detection of trace peroxide explosives in practical applications. Through actual measurement experiments and numerical simulation methods, the derivative dynamic time warping (DDTW) algorithm and the Spearman correlation coefficient were used to calculate the DDTW-Spearman distance to achieve time series correlation measurements. The detection sensitivity of triacetone triperoxide (TATP) and H2O2 was studied, and the detection of organic substances of acetone, acetylene, ethanol, ethyl acetate, and petroleum ether was carried out. The stability and specific detection ability of the fluorescent photoelectric detection system were determined. The research results showed that the fluorescence photoelectric detection system can effectively identify the detection data of TATP, H2O2, acetone, acetonitrile, ethanol, ethyl acetate, and petroleum ether. The detection limit of 0.01 mg/mL of TATP and 0.0046 mg/mL of H2O2 was less than 10 ppb. The time series similarity measurement method improves the analytical capabilities of fluorescence photoelectric detection technology.
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Affiliation(s)
| | - Yabin Wang
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;
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Klapec DJ, Czarnopys G, Pannuto J. Interpol review of the analysis and detection of explosives and explosives residues. Forensic Sci Int Synerg 2023; 6:100298. [PMID: 36685733 PMCID: PMC9845958 DOI: 10.1016/j.fsisyn.2022.100298] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Douglas J. Klapec
- Arson and Explosives Section I, United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
| | - Greg Czarnopys
- Forensic Services, United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
| | - Julie Pannuto
- United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
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Ha NS, de Raad M, Han LZ, Golini A, Petzold CJ, Northen TR. Faster, better, and cheaper: harnessing microfluidics and mass spectrometry for biotechnology. RSC Chem Biol 2021; 2:1331-1351. [PMID: 34704041 PMCID: PMC8496484 DOI: 10.1039/d1cb00112d] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/01/2021] [Indexed: 12/14/2022] Open
Abstract
High-throughput screening technologies are widely used for elucidating biological activities. These typically require trade-offs in assay specificity and sensitivity to achieve higher throughput. Microfluidic approaches enable rapid manipulation of small volumes and have found a wide range of applications in biotechnology providing improved control of reaction conditions, faster assays, and reduced reagent consumption. The integration of mass spectrometry with microfluidics has the potential to create high-throughput, sensitivity, and specificity assays. This review introduces the widely-used mass spectrometry ionization techniques that have been successfully integrated with microfluidics approaches such as continuous-flow system, microchip electrophoresis, droplet microfluidics, digital microfluidics, centrifugal microfluidics, and paper microfluidics. In addition, we discuss recent applications of microfluidics integrated with mass spectrometry in single-cell analysis, compound screening, and the study of microorganisms. Lastly, we provide future outlooks towards online coupling, improving the sensitivity and integration of multi-omics into a single platform.
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Affiliation(s)
- Noel S Ha
- Biological Systems and Engineering, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint BioEnergy Institute Emeryville CA USA
| | - Markus de Raad
- Environmental Genomics and Systems Biology, Biosciences, Lawrence Berkeley National Laboratory Berkeley CA USA
| | - La Zhen Han
- Environmental Genomics and Systems Biology, Biosciences, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint Genome Institute Berkeley CA USA
| | - Amber Golini
- Environmental Genomics and Systems Biology, Biosciences, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint Genome Institute Berkeley CA USA
| | - Christopher J Petzold
- Biological Systems and Engineering, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint BioEnergy Institute Emeryville CA USA
| | - Trent R Northen
- Biological Systems and Engineering, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint BioEnergy Institute Emeryville CA USA
- Environmental Genomics and Systems Biology, Biosciences, Lawrence Berkeley National Laboratory Berkeley CA USA
- US Department of Energy Joint Genome Institute Berkeley CA USA
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Astefanei A, van den Berg KJ, Burnstock A, Corthals G. Surface Acoustic Wave Nebulization-Mass Spectrometry as a New Tool to Investigate the Water Sensitivity Behavior of 20th Century Oil Paints. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:444-454. [PMID: 33296200 DOI: 10.1021/jasms.0c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The sensitive surfaces of many unvarnished 20th century oil paintings are of great concern for conservators and collection keepers. They may show degradation problems such as paint delamination, dripping, and soft and sticky paint and pose challenges for cleaning due to solvent sensitivity. We report for the first time the use of an innovative ambient ionization technique, surface acoustic wave nebulization-mass spectrometry (SAWN-MS), for the identification and characterization of fatty acids, dicarboxylic species and glycerides in water-sensitive modern oil paints. The composition of 10 relevant Winsor and Newton 1964-1965 paint swatches that present different degrees of water sensitivity and two paint samples from a painting by the British artist Francis Bacon were studied. Principal component analysis was used for SAWN-MS data classification. Electrospray ionization (ESI)-MS was used as control method, specifically to compare the obtained ratios of markers of interest by the two ionization techniques. The results obtained by both ESI-MS and SAWN-MS are correlated and discussed in a broader context including the information on the oil media obtained by gas chromatography (GC-MS) and also on the inorganic materials and salts characterized using a combination of methods in previous reports on samples from the same manufacturer. SAWN-MS was found to be a suitable tool for the determination of soluble organic constituents present in the paints. The method provides an indication of the level of oxidation and hydrolysis of the paint film by monitoring specific markers such as free palmitic and stearic acids, azelaic acid, monoacylglycerols, and diacylglycerols. The data showed that a higher level of water sensitivity coupled with a high level of oxidation and hydrolysis is linked to higher dicarboxylic acid, diacyl- and triacylglyceride content and lower levels of short chain fatty acids. The data obtained by SAWN-MS provided a good correlation between the monitored species and the degree of water sensitivity.
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Affiliation(s)
- Alina Astefanei
- Van 't Hoff Institute for Molecular Sciences, Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, Netherlands
- Centre of Analytical Sciences Amsterdam, Science Park, 904, 1098 XH Amsterdam, The Netherlands
| | - Klaas Jan van den Berg
- Cultural Heritage Agency of The Netherlands (RCE), Hobbemastraat 22, 1071 ZC, Amsterdam, Netherlands
- Conservation and Restoration, Faculty for the Humanities, University of Amsterdam, Johannes Vermeerplein 1, 1071 DV Amsterdam, Netherlands
| | - Aviva Burnstock
- Courtauld Institute of Art, Somerset House, Strand, London, WC2R 0RN, United Kingdom
| | - Garry Corthals
- Van 't Hoff Institute for Molecular Sciences, Faculty of Science, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, Netherlands
- Centre of Analytical Sciences Amsterdam, Science Park, 904, 1098 XH Amsterdam, The Netherlands
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Sun D, Böhringer KF, Sorensen M, Nilsson E, Edgar JS, Goodlett DR. Droplet delivery and nebulization system using surface acoustic wave for mass spectrometry. LAB ON A CHIP 2020; 20:3269-3277. [PMID: 32760973 DOI: 10.1039/d0lc00495b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present a piezoelectric transducer for standing wave surface acoustic wave nebulization (SW-SAWN). The transducer nebulizes nonvolatile analytes present in bulk fluid into ambient air after which the aerosolized drops are sampled by mass spectrometry (MS) for detection. Furthermore, we report for the first time integration of anisotropic ratchet conveyors (ARCs) on the SAWN transducer surfaces to automate the sample preparation and droplet delivery process. The ARCs employ micro-sized hydrophilic patterns on hydrophobic Cytop coatings. Moving, positioning, merging, and mixing of droplets at a designated nebulization location are demonstrated. To create the ARCs, we adopt parylene C as a stencil mask so that the hydrophobicity of the Cytop does not degrade during the microfabrication process. MS measurements with the SAWN chip are performed under different input frequencies. The SAWN transducer can provide a controllable nebulization rate by varying the input nebulization frequency while maintaining a reasonable signal to noise ratio for MS detection.
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Affiliation(s)
- Di Sun
- Department of Electrical and Computer Engineering, University of Washington, Seattle, WA 98195, USA. and Institute for Nano-Engineered Systems, University of Washington, Seattle, WA 98195, USA
| | - Karl F Böhringer
- Department of Electrical and Computer Engineering, University of Washington, Seattle, WA 98195, USA. and Institute for Nano-Engineered Systems, University of Washington, Seattle, WA 98195, USA
| | | | | | - J Scott Edgar
- Department of Medicinal Chemistry, University of Washington, Seattle, WA 98195, USA
| | - David R Goodlett
- School of Dentistry, University of Maryland, Baltimore, MD 21201, USA and International Centre for Cancer Vaccine Science, University of Gdansk, Gdansk, Poland, EU
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