离子迁移谱技术及其化学校准物概述

Technique of ion mobility spectrometry and summary of its chemical calibrants

离子迁移谱技术(IMS)是一种现场痕量探测技术,被广泛地用于反恐安检等痕量探测领域。IMS探测仪的正常工作离不开一些特定化学物质作为校准物,但是国内鲜有报道提及该类物质,概述了数种化学物质在作为IMS校准物时的一些特性。

Ion mobility spectrometry(IMS) has recently undergone significant expansion in terms of the number of users and applications,particularly in the security domain.The operation system cannot run smoothly without certain chemical compounds,named calibrants.Although several IMS reference standards have been proposed,there are no currently universally recognized reference standards for the calibration and evaluation of mobility spectrometers.This article describes current practices and the literature on several chemical standards for validating IMS systems in both positive and negative ion modes.