评估用于检测完整爆炸物的手持拉曼光谱仪
Makenzie Kuehn1, Kevin Bates2, J Tyler Davidson1
1Department of Forensic Science, College of Criminal Justice, Sam Houston State University, Huntsville, TX, USA.
Forensic science international
|November 4, 2023
概括
这项研究评估了两个手持式拉曼光谱仪,用于检测TNT和ANFO等爆炸物. 里加库ResQ-CQL表现出卓越的性能,提供更好的分辨率和更广泛的扫描范围用于现场调查.
科学领域:
- 法医科学 法医科学 法医科学
- 分析化学 分析化学
- 频谱学是一种光谱学.
背景情况:
- 现场检测完整的爆炸物,由于样品的敏感性和危险性,存在重大挑战.
- 手持式拉曼光谱仪在现场设置中为未知样品提供便携式和快速分析.
- 关于这些仪器对爆炸性化合物的特定检测能力的研究有限.
研究的目的:
- 为了评估两个手持式拉曼光谱仪的检测能力:Rigaku ResQ-CQL和现场法医学HandyRamTM.
- 评估爆炸性标准的敏感性,数据可重复性和内部图书馆性能.
- 调查常见容器材料的干扰,并分析真实爆炸物样本.
主要方法:
- 使用的分析标准包括2,4,6-三二二 (TNT),甲 (NM),酸 (AN),二胺 (DPA),乙烯中央 (EC) 和甲基中央 (MC).
- 用玻璃和塑料容器进行干扰研究.
- 分析的真实完整的爆炸物样本:TNT片,ANFO,无烟粉和甲.
主要成果:
- 关于峰值位置和强度,两种仪器中的所有分析品的光谱都是可重现的.
- 里加库ResQ-CQL显示了所有分析品和真实样品的优异分辨率.
- 由于ResQ-CQL的扫描范围更广,可以检测400厘米-1.1厘米以下的更详细的峰值.
结论:
- 手持式拉曼光谱仪可以为爆炸物检测提供可重现的光谱数据.
- 里加库ResQ-CQL为爆炸物的现场分析提供了增强的性能.
- 了解仪器功能对于调查人员在法医应用中有效使用至关重要.
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