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题名: On-site Rapid Detection of Trace Non-volatile Inorganic Explosives by Stand-alone Ion Mobility Spectrometry via Acid-enhanced Evaporization
作者: Peng, Liying1, 2;  Hua, Lei1;  Wang, Weiguo1;  Zhou, Qinghua1, 2;  Li, Haiyang1
刊名: SCIENTIFIC REPORTS
发表日期: 2014-10-16
DOI: 10.1038/srep06631
卷: 4
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: New techniques for the field detection of inorganic improvised explosive devices (IEDs) are urgently developed. Although ion mobility spectrometry (IMS) has been proved to be the most effective method for screening organic explosives, it still faces a major challenge to detect inorganic explosives owing to their low volatilities. Herein, we proposed a strategy for detecting trace inorganic explosives by thermal desorption ion mobility spectrometry (TD-IMS) with sample-to-sample analysis time less than 5 s based on in-situ acidification on the sampling swabs. The responses for typical oxidizers in inorganic explosives, such as KNO3, KClO3 and KClO4 were at least enhanced by a factor of 3000 and their limits of detection were found to be subnanogram. The common organic explosives and their mixtures with inorganic oxidizers were detected, indicating that the acidification process did not affect the detection of organic explosives. Moreover, the typical inorganic explosives such as black powders, firecrackers and match head could be sensitively detected as well. These results demonstrated that this method could be easily employed in the current deployed IMS for on-site sensitive detection of either inorganic explosives or organic ones.
关键词[WOS]: IONIZATION MASS-SPECTROMETRY ;  BRADBURY-NIELSEN-GATE ;  CAPILLARY-ELECTROPHORESIS ;  ELECTROSPRAY-IONIZATION ;  POSTBLAST RESIDUES ;  THERMAL-DESORPTION ;  IDENTIFICATION ;  NITRATE ;  CHROMATOGRAPHY ;  RESOLUTION
语种: 英语
WOS记录号: WOS:000343089300001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145476
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Peng, Liying,Hua, Lei,Wang, Weiguo,et al. On-site Rapid Detection of Trace Non-volatile Inorganic Explosives by Stand-alone Ion Mobility Spectrometry via Acid-enhanced Evaporization[J]. SCIENTIFIC REPORTS,2014,4.
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