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Dopant-enhanced atmospheric pressure glow discharge ionization source for ion mobility spectrometry
Dong, Can1,2; Wang, Lina1; Wang, Weiguo1; Hou, Keyou1; Li, Haiyang1; Li HY(李海洋); Li HY(李海洋)
KeywordGlow Discharges Ion Mobility Ionisation
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
2008-10-01
ISSN0034-6748
DOI10.1063/1.2999832
Volume79Issue:10Pages:104101-1-104101-7
Indexed BySCI
SubtypeArticle
Department1
Funding Project102
Contribution Rank1;1
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS SubjectInstruments & Instrumentation ; Physics, Applied
WOS Research AreaInstruments & Instrumentation ; Physics
WOS KeywordDIELECTRIC BARRIER DISCHARGES ; ENERGY DISTRIBUTION FUNCTION ; PLASMA CHROMATOGRAPHY ; NUMERICAL-SIMULATION ; CHEMICAL-PROCESSES ; MIXTURES ; CORONA ; PHOTOIONIZATION ; KINETICS ; DESIGN
AbstractA dopant-enhanced atmospheric pressure direct current glow discharge ionization source for ion mobility spectrometry (APDCGD-IMS) has been described. It is shown that the ion intensity can be greatly increased by addition of species with ionization energy lower than that of buffer gas when the direction of the electric field between the target electrode and the extraction electrode was opposite to that of the drift field. With N-2 as the buffer gas, adding O-2 (or air), acetone, and CH2Cl2 with certain concentration can enhanced the ion intensity more than one order of magnitude, and for O-2, it was found that the enhancement depending on both the concentration of O-2 and the flow rate of the carrier gas, and the largest enhancements of the signal intensity for electron in negative mode and reaction ion in positive mode reached at O-2 concentration about 1.5%-2%. The main physicochemical processes were summarized and discussed, and a zero-dimensional reaction rate model was set up to simulate the corresponding results. It was proposed that the enhancement of signal intensity was ascribed to the various ionization processes and reactions in APDCGD.
Language英语
URL查看原文
WOS IDWOS:000260573500037
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/100741
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi HY(李海洋); Li HY(李海洋)
Affiliation1.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
GB/T 7714
Dong, Can,Wang, Lina,Wang, Weiguo,et al. Dopant-enhanced atmospheric pressure glow discharge ionization source for ion mobility spectrometry[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2008,79(10):104101-1-104101-7.
APA Dong, Can.,Wang, Lina.,Wang, Weiguo.,Hou, Keyou.,Li, Haiyang.,...&李海洋.(2008).Dopant-enhanced atmospheric pressure glow discharge ionization source for ion mobility spectrometry.REVIEW OF SCIENTIFIC INSTRUMENTS,79(10),104101-1-104101-7.
MLA Dong, Can,et al."Dopant-enhanced atmospheric pressure glow discharge ionization source for ion mobility spectrometry".REVIEW OF SCIENTIFIC INSTRUMENTS 79.10(2008):104101-1-104101-7.
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