Application of purge and trap‐atmospheric pressure chemical ionization‐tandem mass spectrometry for the determination of dimethyl sulfide in seawater
Sign Up to like & getrecommendations! Published in 2020 at "Limnology and Oceanography: Methods"
DOI: 10.1002/lom3.10381
Abstract: We describe a method for measuring trace concentrations of dimethyl sulfide (DMS) in seawater using a commercial tandem mass spectrometer configured for atmospheric pressure chemical ionization (PT‐APCI‐MS/MS), coupled with a custom‐built purge and trap gas extraction… read more here.
Keywords: atmospheric pressure; dimethyl sulfide; pressure chemical; method ... See more keywords
Direct detection of gas-phase mercuric chloride by ion drift - Chemical ionization mass spectrometry
Sign Up to like & getrecommendations! Published in 2020 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2020.117687
Abstract: Abstract Mercury is a persistent environmental pollutant that enters the atmosphere mostly in elemental form (Hg0) and leaves in oxidized form. The atmospheric oxidation mechanism of Hg0 is inadequately constrained because of the limited direct… read more here.
Keywords: chemical ionization; ion drift; ion; gom ... See more keywords
Analysis of brominated flame retardants and their derivatives by atmospheric pressure chemical ionization using gas chromatography coupled to tandem quadrupole mass spectrometry.
Sign Up to like & getrecommendations! Published in 2017 at "Talanta"
DOI: 10.1016/j.talanta.2016.10.060
Abstract: A validated method using an atmospheric pressure chemical ionization source for coupling gas chromatography (GC-APCI) to tandem quadrupole mass spectrometry (MS/MS) for the determination of brominated flame retardants (BFRs) is presented. Polybrominated diphenyl ethers (PBDEs),… read more here.
Keywords: gas chromatography; pressure chemical; tandem quadrupole; quadrupole mass ... See more keywords
Photoionization-induced NO+ chemical ionization time-of-flight mass spectrometry for rapid measurement of aldehydes and benzenes in vehicles.
Sign Up to like & getrecommendations! Published in 2021 at "Talanta"
DOI: 10.1016/j.talanta.2021.122722
Abstract: In-vehicle air pollution has become a major concern to public health in recent years. The traditional analytical methods for detection of volatile organic compounds (VOCs) pollutants in air are based on gas chromatography - mass… read more here.
Keywords: chemical ionization; time; mass spectrometry; aldehydes benzenes ... See more keywords
Atmospheric pressure chemical ionization in gas chromatography-mass spectrometry for the analysis of persistent organic pollutants
Sign Up to like & getrecommendations! Published in 2020 at "Trends in Environmental Analytical Chemistry"
DOI: 10.1016/j.teac.2019.e00076
Abstract: Abstract Atmospheric pressure chemical ionization (APCI) was primarily applied as the ion source for liquid chromatography-mass spectrometry (LC–MS). While APCI started to be used in gas chromatography-mass spectrometry (GC–MS) in 1970s, GC-APCI-MS was not widely… read more here.
Keywords: chemical ionization; chromatography mass; ionization; mass spectrometry ... See more keywords
Integrating the MasSpec Pen with Sub-Atmospheric Pressure Chemical Ionization for Rapid Chemical Analysis and Forensic Applications.
Sign Up to like & getrecommendations! Published in 2021 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.1c00393
Abstract: Analytical methods that allow rapid, sensitive, and specific chemical measurements are central to forensic analysis and essential to accelerating compound screening and confirmation. We have previously reported the development of the MasSpec Pen technology as… read more here.
Keywords: chemical ionization; masspec pen; analysis; sub ... See more keywords
Mapping Glyceride Species in Biodiesel by High-Temperature Gas Chromatography Combined with Chemical Ionization Mass Spectrometry.
Sign Up to like & getrecommendations! Published in 2021 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.1c02474
Abstract: Accurate and comprehensive identification of residual glycerides in biodiesel is an important part of fuel characterization due to the impact of glycerides on the fuel physicochemical properties. However, analysis of bound glycerol in biodiesel samples… read more here.
Keywords: glyceride species; mass spectrometry; high temperature; gas ... See more keywords
Parallel Operation of Electron Ionization and Chemical Ionization for GC-MS Using a Single TOF Mass Analyzer.
Sign Up to like & getrecommendations! Published in 2022 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.2c00933
Abstract: This work describes a novel mass spectrometer coupled to gas chromatography (GC-MS) that simultaneously displays the mass spectral information of electron (EI)- and chemical ionization (CI)-generated ion populations for a single chromatographic peak. After GC… read more here.
Keywords: ionization; tof mass; chemical ionization; mass analyzer ... See more keywords
Direct Analysis of Carbonyl Compounds by Mass Spectrometry with Double-Region Atmospheric Pressure Chemical Ionization.
Sign Up to like & getrecommendations! Published in 2019 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.8b05834
Abstract: Direct analysis of highly reactive volatile species such as the aliphatic aldehydes as vital biomarkers remains a great challenge due to difficulties in the sample pretreatment. To address such a challenge, we herein report the… read more here.
Keywords: pressure chemical; mass spectrometry; analysis; chemical ionization ... See more keywords
Hydrogen Plasma-Based Medium Pressure Chemical Ionization Source for GC-TOFMS.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1021/jasms.1c00329
Abstract: The construction, critical evaluation, and performance assessment of a medium-pressure (2-13 mbar), high-temperature chemical ionization (CI) source for application in GC-MS is described. The ion source is coupled to a commercial time-of-flight (TOF) mass analyzer.… read more here.
Keywords: reagent; gas; medium pressure; chemical ionization ... See more keywords
Negative Atmospheric Pressure Chemical Ionization of Chlorinated Hydrocarbons Studied by Ion Mobility Spectrometry (IMS) and IMS-MS Techniques.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1021/jasms.2c00139
Abstract: Negative polarity atmospheric pressure chemical ionization of selected chlorinated hydrocarbons (tetrachloromethane CCl4 and hexachloroethane C2Cl6, dichloromethane CH2Cl2, trichloromethane CHCl3, 1,1,1,2-tetrachloroethane 1,1,1,2-C2H2Cl4, 1,1,2,2-tetrachloroethane 1,1,2,2,-C2H2Cl4 1,1,2-trichloroethane 1,1,2-C2H3Cl3, and 1,1,2-trichloroethane 1,1,2-C2HCl3) was studied using ion mobility spectrometry (IMS)… read more here.
Keywords: pressure chemical; atmospheric pressure; ionization; chemical ionization ... See more keywords