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Monitoring of selected skin- and breath-borne volatile organic compounds emitted from the human body using gas chromatography ion mobility spectrometry (GC-IMS)
Journal of Chromatography B ( IF 2.8 ) Pub Date : 2018-01-13 , DOI: 10.1016/j.jchromb.2018.01.013
Paweł Mochalski , Helmut Wiesenhofer , Maria Allers , Stefan Zimmermann , Andreas T. Güntner , Nicolay J. Pineau , Wolfgang Lederer , Agapios Agapiou , Christopher A. Mayhew , Veronika Ruzsanyi

Human smuggling and associated cross-border crimes have evolved as a major challenge for the European Union in recent years. Of particular concern is the increasing trend of smuggling migrants hidden inside shipping containers or trucks. Therefore, there is a growing demand for portable security devices for the non-intrusive and rapid monitoring of containers to detect people hiding inside. In this context, chemical analysis of volatiles organic compounds (VOCs) emitted from the human body is proposed as a locating tool. In the present study, an in-house made ion mobility spectrometer coupled with gas chromatography (GC-IMS) was used to monitor the volatile moieties released from the human body under conditions that mimic entrapment. A total of 17 omnipresent volatile compounds were identified and quantified from 35 ion mobility peaks corresponding to human presence. These are 7 aldehydes (acrolein, 2-methylpropanal, 3-methylbutanal, 2-ethacrolein, n-hexanal, n-heptanal, benzaldehyde), 3 ketones (acetone, 2-pentanone, 4-methyl-2-pentanone), 5 esters (ethyl formate, ethyl propionate, vinyl butyrate, butyl acetate, ethyl isovalerate), one alcohol (2-methyl-1-propanol) and one organic acid (acetic acid). The limits of detection (0.05–7.2 ppb) and relative standard deviations (0.6–11%) should be sufficient for detecting these markers of human presence in field conditions. This study shows that GC-IMS can be used as a portable field detector of hidden or entrapped people.



中文翻译:

使用气相色谱离子迁移谱仪(GC-IMS)监测从人体排放的某些经皮肤和呼吸传播的挥发性有机化合物

近年来,人口走私及相关的跨境犯罪已成为欧洲联盟的一项重大挑战。特别令人关注的是,越来越多的趋势将偷运移民隐藏在集装箱或卡车内。因此,对于用于对容器进行非侵入性和快速监视以检测隐藏在其中的人的便携式安全装置的需求日益增长。在此背景下,建议对从人体排放的挥发性有机化合物(VOC)进行化学分析。在本研究中,使用内部制造的离子迁移谱仪结合气相色谱仪(GC-IMS)来监测在模拟夹带条件下从人体释放的挥发性部分。从对应于人类存在的35个离子迁移峰中鉴定并定量了总共17种无所不在的挥发性化合物。这些是7个醛(丙烯醛,2-甲基丙醛,3-甲基丁醛,2-乙基丙烯醛,正己醛,正庚醛,苯甲醛),3个酮(丙酮,2-戊酮,4-甲基-2-戊酮),5个酯(甲酸乙酯,丙酸乙酯,丁酸乙烯酯,乙酸丁酯,异戊酸乙酯),一种醇(2-甲基-1-丙醇)和一种有机酸(乙酸)。检测限(0.05–7.2 ppb)和相对标准偏差(0.6–11%)应该足以在野外条件下检测这些人类存在的标志物。这项研究表明,GC-IMS可用作隐藏或被困人员的便携式现场探测器。正己醛,正庚醛,苯甲醛),3种酮类(丙酮,2-戊酮,4-甲基-2-戊酮),5种酯类(甲酸乙酯,丙酸乙酯,丁酸乙烯酯,乙酸丁酯,异戊酸乙酯),一种醇(2-甲基-1-丙醇)和一种有机酸(乙酸)。检测限(0.05–7.2 ppb)和相对标准偏差(0.6–11%)应该足以在野外条件下检测这些人类存在的标志物。这项研究表明,GC-IMS可用作隐藏或被困人员的便携式现场探测器。正己醛,正庚醛,苯甲醛),3种酮类(丙酮,2-戊酮,4-甲基-2-戊酮),5种酯类(甲酸乙酯,丙酸乙酯,丁酸乙烯酯,乙酸丁酯,异戊酸乙酯),一种醇(2-甲基-1-丙醇)和一种有机酸(乙酸)。检测限(0.05–7.2 ppb)和相对标准偏差(0.6–11%)应该足以在野外条件下检测这些人类存在的标志物。这项研究表明,GC-IMS可用作隐藏或被困人员的便携式现场探测器。6-11%)应该足以在野外条件下检测出这些人类存在的标志物。这项研究表明,GC-IMS可用作隐藏或被困人员的便携式现场检测器。6-11%)应该足以在野外条件下检测出这些人类存在的标志物。这项研究表明,GC-IMS可用作隐藏或被困人员的便携式现场探测器。

更新日期:2018-01-13
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