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“Click and Screen” Technology for the Detection of Explosives on Human Hands by a Portable MicroNIR–Chemometrics Platform
Analytical Chemistry ( IF 6.7 ) Pub Date : 2018-03-06 00:00:00 , DOI: 10.1021/acs.analchem.7b03661
Roberta Risoluti 1 , Adolfo Gregori 2 , Sergio Schiavone 2 , Stefano Materazzi 1
Affiliation  

Portable near-infrared spectroscopy (MicroNIR) coupled with chemometrics was investigated for the first time as a new tool for the on-site analysis of explosives on human hands. A novel, entirely on-site approach based on the use of a particular miniaturized NIR spectrometer was developed and validated in cooperation with the Scientific Investigation Department (Carabinieri RIS) of Rome. Spectra from 25 volunteers were acquired in the NIR region in reflectance mode, and a prediction model was optimized on the basis of chemometric tools. The results demonstrated the capability of the MicroNIR–Chemometrics approach to correctly identify explosives from hands and not be affected by the complexity and variability of the matrix. This study has shown that the MicroNIR–Chemometrics approach can be considered a useful, fast, nondestructive tool identifying the manipulation of explosives in real forensic cases.

中文翻译:

“点击和筛选”技术,通过便携式MicroNIR-化学计量学平台检测人手上的爆炸物

便携式近红外光谱(MicroNIR)结合化学计量学进行了首次研究,它是一种用于现场分析人手上爆炸物的新工具。与罗马的科学调查部(Carabinieri RIS)合作开发并验证了一种新颖的,完全基于现场的方法,该方法基于特定的微型NIR光谱仪。在反射模式下从NIR区域获取了25位志愿者的光谱,并基于化学计量学工具优化了预测模型。结果表明,MicroNIR-化学计量学方法能够正确识别手中的爆炸物,并且不受基质的复杂性和可变性的影响。这项研究表明,MicroNIR-化学计量学方法可以被认为是一种有用,快速,
更新日期:2018-03-06
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