Electron Attachment Studies for CHCl₃ Using Ion Mobility Spectrometry

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.