显微拉曼光谱在物证鉴定中的应用

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摘 要:对四起真实案例中涉及的物证进行显微拉曼光谱检测,检测结果准确可靠,检测过程方便无损,表明显微拉曼光谱在物证鉴定方中具有独特的优势。

关键词:显微拉曼光谱 物证 司法鉴定

Abstract:Micro-Raman spectroscopy is adopted to analyze the composition of samples in the four real cases. The detection results are accurate and reliable, and the detection process is convenient and non-destructive, which has unique advantages in identification of material evidence.

Key words:Micro-Raman spectroscopy, material evidence, forensic science

1 引言

拉曼光谱是物质分子受光照射后所产生的非弹性散射,拉曼光谱谱带的数目多少、强度大小、位移距离等与分子的振动和转动能量有关,因此,通过拉曼光谱可以得到物质的化学基团、结构及其变化信息[1],在安检[2]、食品[3]、药品[4]、材料[5]等领域具有广泛的应用。(剩余2325字)

目录
monitor