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Title: Direct Analysis of Organic Compounds in Liquid Using a Miniature Photoionization Ion Trap Mass Spectrometer with Pulsed Carrier-Gas Capillary Inlet

Abstract

A miniature ion trap mass spectrometer with capillary direct sampling and vacuum ultraviolet photoionization source was developed to conduct trace analysis of organic compounds in liquids. Self-aspiration sampling is available where the samples are drawn into the vacuum chamber through a capillary with an extremely low flow rate (less than 1 μL/min), which minimizes sample consumption in each analysis to tens of micrograms. A pulsed gas-assisted inlet was designed and optimized to promote sample transmission in the tube and facilitate the cooling of ions, thereby improving instrument sensitivity. A limit of detection of 2 ppb could be achieved for 2,4-dimethylaniline in a methanol solution. The sampling system described in the present study is specifically suitable for a miniature photoionization ion trap mass spectrometer that can perform rapid and online analysis for liquid samples. .

Authors:
; ; ; ;  [1];  [2];  [1]
  1. Tsinghua University, Division of Advanced Manufacturing, Graduate School at Shenzhen (China)
  2. Tsinghua University, State Key Laboratory of Precision Measurement Technology and Instruments (China)
Publication Date:
OSTI Identifier:
22776921
Resource Type:
Journal Article
Journal Name:
Journal of the American Society for Mass Spectrometry
Additional Journal Information:
Journal Volume: 28; Journal Issue: 8; Other Information: Copyright (c) 2017 American Society for Mass Spectrometry; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-0305
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CAPILLARIES; FLOW RATE; IONS; MASS SPECTROMETERS; PHOTOIONIZATION; SAMPLING; TRAPS; ULTRAVIOLET RADIATION

Citation Formats

Lu, Xinqiong, Yu, Quan, Zhang, Qian, Ni, Kai, Qian, Xiang, Tang, Fei, and Wang, Xiaohao. Direct Analysis of Organic Compounds in Liquid Using a Miniature Photoionization Ion Trap Mass Spectrometer with Pulsed Carrier-Gas Capillary Inlet. United States: N. p., 2017. Web. doi:10.1007/S13361-017-1683-2.
Lu, Xinqiong, Yu, Quan, Zhang, Qian, Ni, Kai, Qian, Xiang, Tang, Fei, & Wang, Xiaohao. Direct Analysis of Organic Compounds in Liquid Using a Miniature Photoionization Ion Trap Mass Spectrometer with Pulsed Carrier-Gas Capillary Inlet. United States. doi:10.1007/S13361-017-1683-2.
Lu, Xinqiong, Yu, Quan, Zhang, Qian, Ni, Kai, Qian, Xiang, Tang, Fei, and Wang, Xiaohao. Tue . "Direct Analysis of Organic Compounds in Liquid Using a Miniature Photoionization Ion Trap Mass Spectrometer with Pulsed Carrier-Gas Capillary Inlet". United States. doi:10.1007/S13361-017-1683-2.
@article{osti_22776921,
title = {Direct Analysis of Organic Compounds in Liquid Using a Miniature Photoionization Ion Trap Mass Spectrometer with Pulsed Carrier-Gas Capillary Inlet},
author = {Lu, Xinqiong and Yu, Quan and Zhang, Qian and Ni, Kai and Qian, Xiang and Tang, Fei and Wang, Xiaohao},
abstractNote = {A miniature ion trap mass spectrometer with capillary direct sampling and vacuum ultraviolet photoionization source was developed to conduct trace analysis of organic compounds in liquids. Self-aspiration sampling is available where the samples are drawn into the vacuum chamber through a capillary with an extremely low flow rate (less than 1 μL/min), which minimizes sample consumption in each analysis to tens of micrograms. A pulsed gas-assisted inlet was designed and optimized to promote sample transmission in the tube and facilitate the cooling of ions, thereby improving instrument sensitivity. A limit of detection of 2 ppb could be achieved for 2,4-dimethylaniline in a methanol solution. The sampling system described in the present study is specifically suitable for a miniature photoionization ion trap mass spectrometer that can perform rapid and online analysis for liquid samples. .},
doi = {10.1007/S13361-017-1683-2},
journal = {Journal of the American Society for Mass Spectrometry},
issn = {1044-0305},
number = 8,
volume = 28,
place = {United States},
year = {2017},
month = {8}
}