Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate

	Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate
	Du, Yongzhai 1,2; Wang, Weiguo 1; Li, Haiyang 1
刊名	analytical chemistry
	2012-02-07
卷号	84 期号:3 页码:1725-1731
英文摘要	a simple space compression-dispersion model for ion transport at ambient pressure was mathematically established. on the basis of this model and aided by simion simulation, a three-zone theory was proposed to characterize the bradbury-nielsen gating electric field features as three zones: the depletion zone, the dispersion zone, and the compression zone. then, the influences of gating voltage difference increases on the full width at half-maximum of the cl- peak were investigated in detail to verify the theory. for example, at a gating voltage difference of 350 v and a gate pulse width of 0.34 ms, the ion packets injected were reduced to as low as 60% of their original widths, with the peak height increased from 756 to 808 pa and the resolution from 18 to 33, enhanced by 7% and similar to 80%, respectively. the ion mobility spectrometry (ims) efficiency ratios, r-m/r-c and r-m/r-p, were also raised above theoretical values and reached about 182% and 175%, respectively. the experimental results were explained using the proposed theory with good consistency. finally, a compression coefficient was extracted by fitting the experimental data to the applied gate pulse width, presenting a good linearity. all this shows a potential application in improving the performances of ion mobility spectrometry.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical
研究领域[WOS]	chemistry
关键词[WOS]	chemical warfare agents ; plasma chromatography ; resolving power ; atmospheric-pressure ; mass-spectrometry ; ambient-pressure ; space-charge ; drift-tube ; explosives ; ionization
收录类别	SCI
语种	英语
WOS记录号	WOS:000299863200075
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138068]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Du, Yongzhai,Wang, Weiguo,Li, Haiyang. Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate[J]. analytical chemistry,2012,84(3):1725-1731.
APA	Du, Yongzhai,Wang, Weiguo,&Li, Haiyang.(2012).Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate.analytical chemistry,84(3),1725-1731.
MLA	Du, Yongzhai,et al."Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate".analytical chemistry 84.3(2012):1725-1731.