Chemical ionization reaction time-of-flight mass spectrometry: Multi-reagent analysis for determination of trace gas composition
Chemical ionization reaction time-of-flight mass spectrometry: Multi-reagent analysis for determination of trace gas composition
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DOI：
10.1016/j.ijms.2006.05.021
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发表时间：
2006-07-15
影响因子：
1.8
通讯作者：
Monks, Paul S.
中科院分区：
文献类型：
--
作者：
Blake, Robert S.;Wyche, Kevin P.;Monks, Paul S.
化学电离反应质谱（CIRMS）首次应用于具有多种官能团的有机气体。这种技术，最近开发的，是质子转移反应-质谱（PTR-MS）的扩展，在电离过程中使用更多种类的化学电离试剂。在没有任何质量预选的情况下，获得了H3 O+、NH 4+、NO+和O-2（+）的清洁试剂源。研究发现，这些试剂离子与一系列测试挥发性有机化合物的反应非常迅速，其化学反应通常与之前通过选定的离子流管测量观察到的化学反应相似，尽管存在一些重要差异。CIRMS被证明是一个更通用的技术比传统的PTR-MS与快速多试剂分析的化学混合物的潜力。(C)2006 Elsevier B. V.保留所有权利。
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.