| CHCl3电子吸附速率常数的离子迁移谱 |
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| 引用本文： | 韩海燕,冯鸿涛,李虎,王鸿梅,江海河,储焰南.CHCl3电子吸附速率常数的离子迁移谱[J].化学物理学报,2011,24(2):218-224. |
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| 作者姓名： | 韩海燕 冯鸿涛 李虎 王鸿梅 江海河 储焰南 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031；河北工程大学理学院，邯郸060530;中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031;中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031;中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031;中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031;中国科学院安徽光学精密机械研究所环境光谱实验室，合肥230031 |
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| 摘 要： | 利用电晕放电离子迁移谱， 使用高纯氮气作为载气和迁移气体， 研究了电场强度在200～500 V/cm变化时CHCl3的解离电子吸附速率常数， 得到样品所对应的电子吸附速率常数为1.26×10-8～8.24×10-9 cm3/(molecules s)．利用该装置测量了固定电场下，样品的电子吸附速率常数与样品浓度之间的关系．此外利用所获得的离子迁移谱图得到了不同电场强度下Cl-与CHCl3之间的离子分子反应速率常数.
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| 关 键 词： | 离子迁移谱，解离电子吸附，离子分子反应，三氯甲烷 |
| 收稿时间： | 2010/11/18 0:00:00 |
Electron Attachment Studies for CHCl3 Using Ion Mobility Spectrometry |
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| Hai-yan Han,Hong-tao Feng,Hu Li,Hong-mei Wang,Hai-he Jiang and Yan-nan Chu.Electron Attachment Studies for CHCl3 Using Ion Mobility Spectrometry[J].Chinese Journal of Chemical Physics,2011,24(2):218-224. |
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| Authors: | Hai-yan Han Hong-tao Feng Hu Li Hong-mei Wang Hai-he Jiang and Yan-nan Chu |
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| Institution: | Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; College of Science, Hebei University of Engineering, Handan 060530, China;Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | The dissociative electron attachment process for CHCl3 at different electric field have been studied with nitrogen as drift and carrier gas using corona discharge ionization source ion mobility spectrometry (CD-IMS). The corresponding electron attachment rate constants varied from 1.26×10-8 cm3/(molecules s) to 8.24×10-9 cm3/(molecules s) as the electric field changed from 200 V/cm to 500 V/cm. At a fixed electric field in the drift region,
the attachment rate constants are also detected at different sample concentration. The ion-molecule reaction rate constants for the further reaction between Cl- and CHCl3 are also detected, which indicates that the technique maybe becomes a new method to research the rate constants between ions and neural molecules. And the reaction rate constants between Cl- and CHCl3 are the first time detected using CD-IMS. |
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| Keywords: | Ion mobility spectrometry Dissociative electron attachment Ion-molecule reaction rate constant Chloroform |
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