中文摘要：

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200-500V／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1．26×10-8～8．24×10-9cm3／（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．

英文摘要：

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 ionmolecule 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.