Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry
文献类型：期刊论文
| 作者 | Chen, Ping1,2; Hou, Keyong1; Hua, Lei1; Xie, Yuanyuan1,2; Zhao, Wuduo1,2; Chen, Wendong1,2; Chen, Chuang1; Li, Haiyang1 |
| 刊名 | analytical chemistry
 |
| 出版日期 | 2014-02-04 |
| 卷号 | 86期号:3页码:1332-1336 |
| 通讯作者 | 李海洋 |
| 英文摘要 | the application of vuv lamp-based single photon ionization (spi) was limited due to low photon energy and poor photon flux density. in this work, we designed a quasi-trapping chemical ionization (qt-ci) source with a commercial vuv 10.6 ev krypton lamp for time-of-flight mass spectrometry. the three electrode configuration ion source with rf voltage on the second electrode constitutes a quasi-trapping region, which has two features: accelerating the photoelectrons originated from the photoelectric effect with vuv light to trigger the chemical ionization through ion-molecule reaction and increasing the collisions between reactant ion o-2(+) and analyte molecules to enhance the efficiency of chemical ionization. compared to single spi based on vuv krypton lamp, the qt-ci ion source not only apparently improved the sensitivity (e.g., 12-118 fold enhancement were achieved for 13 molecules, including aromatic hydrocarbon, chlorinated hydrocarbon, hydrogen sulfide, etc.) but also extended the range of ionizable molecules with ionization potential (ip) higher than 10.6 ev, such as propane, dichloroethane, and trichloromethane |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | single-photon ionization ; volatile organic-compounds ; vacuum-ultraviolet lamp ; electron-impact ionization ; online gas-analysis ; photoelectron ionization ; light-source ; radiation ; setup |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331014800004 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/143968]  |
| 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 Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ping,Hou, Keyong,Hua, Lei,et al. Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry[J]. analytical chemistry,2014,86(3):1332-1336. |
| APA | Chen, Ping.,Hou, Keyong.,Hua, Lei.,Xie, Yuanyuan.,Zhao, Wuduo.,...&Li, Haiyang.(2014).Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry.analytical chemistry,86(3),1332-1336. |
| MLA | Chen, Ping,et al."Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry".analytical chemistry 86.3(2014):1332-1336. |
入库方式： OAI收割
来源：大连化学物理研究所
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