Bradbury-Nielsen-Gate-Grid Structure for Further Enhancing the Resolution of Ion Mobility Spectrometry
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 | 2012-07-03 |
| 卷号 | 84期号:13页码:5700-5707 |
| 英文摘要 | in our previous work we proposed a three-zone theory for the bradbury-nielsen (bn) gate and proved with a grid-bn structure ion mobility drift tube that enhancements of the three-zone features led to higher resolutions and sometimes higher sensitivities. in this work we continued to seek further improvements of the resolution performance by adopting a bn-grid structure in the same drift tube. the postgate grid works both for confinement of the bn gate induced electric field and for isolation of the injection field from the drift field. this makes it possible to obtain better resolutions by further enhancing the compression electric field and lowering the injection field. it was found in the following experiments that reducing the injection field led to higher resolutions yet lower sensitivities. at an injection field of 140 v/cm, the inverse compression coefficient was found to be much larger than that in the grid-bn structure at all gating voltage differences (gvds). at gvd = 350 v and a gate pulse width of 0.34 ms, the ion mobility spectrometry efficiency r-m/r-c reached as high as 221% in the bn-grid structure, presenting a further increase compared to 182% in the grid-bn structure. finally, two examples are given to show the separation power improvements with good resolutions. |
| 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 ; atmospheric-pressure ; mass-spectrometry ; ambient-pressure ; resolving power ; illicit drugs ; space-charge ; explosives ; simulants |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000305871300036 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142997]  |
| 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. Bradbury-Nielsen-Gate-Grid Structure for Further Enhancing the Resolution of Ion Mobility Spectrometry[J]. analytical chemistry,2012,84(13):5700-5707. |
| APA | Du, Yongzhai,Wang, Weiguo,&Li, Haiyang.(2012).Bradbury-Nielsen-Gate-Grid Structure for Further Enhancing the Resolution of Ion Mobility Spectrometry.analytical chemistry,84(13),5700-5707. |
| MLA | Du, Yongzhai,et al."Bradbury-Nielsen-Gate-Grid Structure for Further Enhancing the Resolution of Ion Mobility Spectrometry".analytical chemistry 84.13(2012):5700-5707. |
入库方式： OAI收割
来源：大连化学物理研究所
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