Ion mobility spectrometry (IMS) detects illegal substances and explosives in airports, ports, and customs. This is complicated by false positives caused by overlapping peaks. Shift reagents selectively change ion mobilities through adduction with analyte ions. This discriminates false positives because interferents and illegal substances respond differently to shift reagents.

中文翻译：

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离子迁移谱中的离子迁移试剂结合能和质量迁移率迁移相关性

离子迁移谱 (IMS) 可检测机场、港口和海关中的非法物质和爆炸物。这因重叠峰引起的误报而复杂化。移位试剂通过与分析物离子的加成选择性地改变离子迁移率。这可以区分误报，因为干扰物和非法物质对转换试剂的反应不同。