基于差分喇曼光谱快速鉴别食品塑料包装袋  

Rapid identification of food plastic packaging bags based on differential Raman spectroscopy

作　　者：王欣[1] 姜红[1] 刘峰 段斌 WANG Xin;JIANG Hong;LIU Feng;DUAN Bin(Institute of Criminal Investigation, People’s Public Security University of China,Beijing 100038, China;Nanjing Jianzhi Instrument Equipment Co. Ltd.,Nanjing 210049, China)

机构地区：[1]中国人民公安大学侦查学院,北京100038 [2]南京简智仪器设备有限公司,南京210049

出　　处：《激光技术》2021年第2期213-217,共5页Laser Technology

基　　金：南京简智仪器有限公司技术合作项目(20191218);中国人民公安大学2019年度基本科研业务费重点资助项目(2019JKF222)。

摘　　要：为了快速鉴别案件现场残留的食品塑料包装袋样本,采用差分喇曼光谱法结合系统聚类分析方法,对46个不同来源、不同系列的食品塑料包装袋样本进行了分析检验。结果表明,依据差分喇曼光谱图中特征峰的不同,可以有效区分不同来源的食品塑料包装袋样本;同时结合系统聚类分析法,可将46个样本分为17类。该方法不破坏检材、重现性好,实验结果较为理想,为微量物证检验提供了一定的参考依据。In order to quickly identify the material evidence of food plastic packaging bags on the scene,46 samples from different sources and different series of food plastic packaging bags were analyzed and tested by differential Raman spectroscopy and system cluster analysis.The results show that the samples of different sources of food plastic packaging bags can be effectively distinguished according to the different characteristic peaks in the differential Raman spectrum.And 46 samples can be divided into 17 categories by combining with the system cluster analysis.This method does not damage the sample,and the experimental results are ideal,which provides a certain reference for the examination of trace evidence.

关 键 词：光谱学 差分喇曼 食品塑料包装袋 聚类分析 

分 类 号：O433.4[机械工程—光学工程] TS206.4[理学—光学]