Central Research Laboratory, Hitachi, Ltd, Kokubunji-shi, Tokyo, Japan.
Rapid Commun Mass Spectrom. 2011 Sep 15;25(17):2448-52. doi: 10.1002/rcm.5147.
With the aim of improving security, a high-throughput portal system for detecting triacetone triperoxide (TATP) vapor emitted from passengers and luggage was developed. The portal system consists of a push-pull air sampler, an atmospheric-pressure chemical ionization (APCI) ion source, and an explosives detector based on mass spectrometry. To improve the sensitivity of the explosives detector, a novel linear ion trap mass spectrometer with wire electrodes (wire-LIT) is installed in the portal system. TATP signals were clearly obtained 2 s after the subject under detection passed through the portal system. Preliminary results on sensitivity and throughput show that the portal system is a useful tool for preventing the use of TATP-based improvised explosive devices by screening persons in places where many people are coming and going.
为提高安全性，开发了一种用于检测乘客和行李中三过氧化丙酮（TATP）蒸气的高通量门控系统。该门控系统由推挽式空气采样器、常压化学电离（APCI）离子源和基于质谱的爆炸物探测器组成。为提高爆炸物探测器的灵敏度，在门控系统中安装了带有线状电极的新型线性离子阱质谱仪（wire-LIT）。在被检测对象通过门控系统 2 秒后，可清晰地获得 TATP 信号。灵敏度和通量的初步结果表明，该门控系统是通过对人员进行筛查，在人员往来频繁的场所防止使用基于 TATP 的简易爆炸装置的有用工具。
