手持式差分拉曼光谱结合XRF方法在塑料瓶盖成分鉴定中的应用研究

Application of Handheld Differential Raman Spectroscopy Combined with XRF in the Identification of Plastic Bottle Caps

建立一种快速检验塑料瓶盖类物证的方法。利用手持式差分拉曼光谱和X射线荧光光谱对39个塑料瓶盖进行检验,将有机成分检验和无机元素检验结合起来,根据其拉曼特征峰进行分类,根据不同元素的含量对每类分组。结果表明:此方法简单快速,无损高效且便于操作,建立了一种快速检验塑料瓶盖类物证的办法,将此方法应用于公安实践中能有效提高破案效率,在法庭科学领域有广阔的发展前景。

A novel method for rapid inspection of physical evidence of plastic bottle caps had been successful established.39 samples were inspected by hand-held differential Raman spectroscopy and X-ray fluorescence spectroscopy.The organic component inspection and inorganic element inspection were combined,and they were classified according to their Raman characteristic peaks,and each type was grouped according to the content of different elements.The results show that this method is simple,fast,non-destructive,efficient and easy to operate.The application of this method in public security practice could effectively improve the efficiency of solving cases,and have broad development prospect in the field of forensic science.