Resolution Enhancement of Ion Mobility Spectrometry by Improving the Three-Zone Properties of the Bradbury-Nielsen Gate
文献类型：期刊论文
| 作者 | Du, Yongzhai1,2; Wang, Weiguo1; Li, Haiyang1 |
| 刊名 | analytical chemistry
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：大连化学物理研究所
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