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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)
关键词Glow Discharges Ion Mobility Ionisation
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
2008-10-01
ISSN0034-6748
DOI10.1063/1.2999832
79期:10页:104101-1-104101-7
收录类别SCI
文章类型Article
部门归属1
项目归属102
产权排名1;1
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Instruments & Instrumentation ; Physics, Applied
研究领域[WOS]Instruments & Instrumentation ; Physics
关键词[WOS]DIELECTRIC BARRIER DISCHARGES ; ENERGY DISTRIBUTION FUNCTION ; PLASMA CHROMATOGRAPHY ; NUMERICAL-SIMULATION ; CHEMICAL-PROCESSES ; MIXTURES ; CORONA ; PHOTOIONIZATION ; KINETICS ; DESIGN
英文摘要A 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.
语种英语
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WOS记录号WOS:000260573500037
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/100741
专题中国科学院大连化学物理研究所
通讯作者Li HY(李海洋); Li HY(李海洋)
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
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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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