光谱法检测玻璃物证的研究

Study on the Detection of Glass Material Evidence by Spectroscopic Methodology

摘要: 利用紫外可见分光光度法、显微分光光度法以及红外光谱法建立了直接测定玻璃样品的分析方法。通过紫外可见分段光光谱、显微可见分段光光谱以及红外光光谱测定36种玻璃样品，并对比了三种方法。实验结果表明，三种光谱法测定玻璃物证方便简洁，精度高，且各有特点，相互补充，可以有效的鉴定不同种类和不同厚度的玻璃样品，从而为刑事案件现场玻璃样品检验提供科学的方法，为司法实践工作提供有力证据。

Abstract: The method of direct determination of glass samples was established by UV-Vis spectrophotometry, microscopic spectrophotometry and infrared spectrophotometry. Through UV visible section light spectrum, microscopic visible section light spectrum and infrared light spectrum, 36 kinds of glass samples were measured, and the three methods were compared. The results showed that the methods were simple and concise and of high precision; each had its own characteristics and complemented each other; they even could effectively identify glass samples of different kinds and different thicknesses. This paper has provided scientific method for the inspection of glass samples in criminal cases, and provided strong evidence for the practice of judicial practice.