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题名: Atmospheric. pressure air direct current glow discharge ionization source for ion mobility spectrometry
作者: Dong, Can1, 2;  Wang, Weiguo1;  Li, Haiyang1
刊名: ANALYTICAL CHEMISTRY
发表日期: 2008-05-15
DOI: 10.1021/ac800197g
卷: 80, 期:10, 页:3925-3930
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: A new atmospheric pressure air direct current glow discharge (DCGD) ionization source has been developed for ion mobility spectrometry (IMS) to overcome the regularity problems associated with the conventional Ni-63 source and the instability of the negative corona discharge. Its general electrical characteristics were experimentally investigated. By equipping it to IMS, a higher sensitivity was obtained compared to that of a Ni-63 source and corona discharge, and a linear dynamic range from 20 ppb to 20 ppm was obtained for m-xylene. Primary investigations showed that alkanes, such as pentane, which are nondetectable or insensitively detectable with Ni-63-IMS, can be efficiently detected by DCGD-IMS and the detection limit of 10 ppb can be reached. The preliminary results have shown that the new DCGD ionization source has great potential applications in IMS, such as online monitoring of environment pollutants and halogenated compounds.
关键词[WOS]: PLASMA CHROMATOGRAPHY ;  CHEMICAL-IONIZATION ;  ORGANIC-COMPOUNDS ;  DC ;  HYDROCARBONS ;  FLOW ;  ALKANES
语种: 英语
WOS记录号: WOS:000255871500056
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141156
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Dong, Can,Wang, Weiguo,Li, Haiyang. Atmospheric. pressure air direct current glow discharge ionization source for ion mobility spectrometry[J]. ANALYTICAL CHEMISTRY,2008,80(10):3925-3930.
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