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Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer

A vacuum ultraviolet lamp based single photon ionization- (SPI-) photoelectron ionization (PEI) portable reflecting time-of-flight mass spectrometer (TOFMS) was designed for online monitoring gas samples. It has a dual mode ionization source: SPI for analyte with ionization energy (IE) below 10.6 eV...

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Autores principales: Huang, Yunguang, Li, Jinxu, Tang, Bin, Zhu, Liping, Hou, Keyong, Li, Haiyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4637480/
https://www.ncbi.nlm.nih.gov/pubmed/26587023
http://dx.doi.org/10.1155/2015/581696
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author Huang, Yunguang
Li, Jinxu
Tang, Bin
Zhu, Liping
Hou, Keyong
Li, Haiyang
author_facet Huang, Yunguang
Li, Jinxu
Tang, Bin
Zhu, Liping
Hou, Keyong
Li, Haiyang
author_sort Huang, Yunguang
collection PubMed
description A vacuum ultraviolet lamp based single photon ionization- (SPI-) photoelectron ionization (PEI) portable reflecting time-of-flight mass spectrometer (TOFMS) was designed for online monitoring gas samples. It has a dual mode ionization source: SPI for analyte with ionization energy (IE) below 10.6 eV and PEI for IE higher than 10.6 eV. Two kinds of sampling inlets, a capillary inlet and a membrane inlet, are utilized for high concentration and trace volatile organic compounds, respectively. A mass resolution of 1100 at m/z 64 has been obtained with a total size of 40 × 31 × 29 cm, the weight is 27 kg, and the power consumption is only 70 W. A mixture of benzene, toluene, and xylene (BTX), SO(2), and discharging products of SF(6) were used to test its performance, and the result showed that the limit of quantitation for BTX is as low as 5 ppbv (S/N = 10 : 1) with linear dynamic ranges greater than four orders of magnitude. The portable TOFMS was also evaluated by analyzing volatile organic compounds from wine and decomposition products of SF(6) inside of a gas-insulated switchgear.
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spelling pubmed-46374802015-11-19 Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer Huang, Yunguang Li, Jinxu Tang, Bin Zhu, Liping Hou, Keyong Li, Haiyang Int J Anal Chem Research Article A vacuum ultraviolet lamp based single photon ionization- (SPI-) photoelectron ionization (PEI) portable reflecting time-of-flight mass spectrometer (TOFMS) was designed for online monitoring gas samples. It has a dual mode ionization source: SPI for analyte with ionization energy (IE) below 10.6 eV and PEI for IE higher than 10.6 eV. Two kinds of sampling inlets, a capillary inlet and a membrane inlet, are utilized for high concentration and trace volatile organic compounds, respectively. A mass resolution of 1100 at m/z 64 has been obtained with a total size of 40 × 31 × 29 cm, the weight is 27 kg, and the power consumption is only 70 W. A mixture of benzene, toluene, and xylene (BTX), SO(2), and discharging products of SF(6) were used to test its performance, and the result showed that the limit of quantitation for BTX is as low as 5 ppbv (S/N = 10 : 1) with linear dynamic ranges greater than four orders of magnitude. The portable TOFMS was also evaluated by analyzing volatile organic compounds from wine and decomposition products of SF(6) inside of a gas-insulated switchgear. Hindawi Publishing Corporation 2015 2015-10-26 /pmc/articles/PMC4637480/ /pubmed/26587023 http://dx.doi.org/10.1155/2015/581696 Text en Copyright © 2015 Yunguang Huang et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Huang, Yunguang
Li, Jinxu
Tang, Bin
Zhu, Liping
Hou, Keyong
Li, Haiyang
Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title_full Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title_fullStr Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title_full_unstemmed Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title_short Development of a Portable Single Photon Ionization-Photoelectron Ionization Time-of-Flight Mass Spectrometer
title_sort development of a portable single photon ionization-photoelectron ionization time-of-flight mass spectrometer
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4637480/
https://www.ncbi.nlm.nih.gov/pubmed/26587023
http://dx.doi.org/10.1155/2015/581696
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