Chemical ionization reaction time-of-flight mass spectrometry: Multi-reagent analysis for determination of trace gas composition

被引：61

作者：

Blake, Robert S. ^{[1
]}

Wyche, Kevin P. ^{[1
]}

Ellis, Andrew M. ^{[1
]}

Monks, Paul S. ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2006年 / 254卷 / 1-2期

基金：

英国自然环境研究理事会;

关键词：

chemical ionization; CIRMS; PTR-MS; proton-transfer;

D O I：

10.1016/j.ijms.2006.05.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Chemical ionization reaction mass spectrometry (CIRMS) is applied for the first time to a range of organic gases with a variety of functional groups. This technique, recently developed, is an extension to proton transfer reaction-mass spectrometry (PTR-MS) using a greater variety of chemical ionization reagents in the ionization process. Clean sources of the reagents H3O+, NH4+, NO+ and O-2(+) have been obtained without any mass pre-selection. The reactions of these reagent ions with a range of test VOCs are found to be rapid, with the chemistry generally paralleling that observed previously with selected ion flow tube measurements, although with some important differences. CIRMS is shown to be a more versatile technique than conventional PTR-MS with the potential for rapid multi-reagent analysis of chemical mixtures. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：85 / 93

页数：9

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