激光拉曼光谱区分黑色圆珠笔字迹初探  

RAMAN SPECTROSCOPY - BASED SEPARATION TO BLACK BALLPOINT INKS OF DIFFERENT FORMULATIONS

作　　者：梁鲁宁[1] 田丽丽[1] 濮玉梅[2] 

机构地区：[1]公安部物证鉴定中心,北京100038 [2]英国雷尼绍公司北京办事处

出　　处：《刑事技术》2000年第3期28-29,共2页Forensic Science and Technology

摘　　要：针对现在广泛使用的薄层色谱分析技术带有破坏检材的缺点,提取采用激光拉曼光谱法进行无损检验,通过对收集的5个国家10种牌号样品进行初步比对分析,区分率达90%以上.Thin layer chromatography (TLC) analysis is the most widely used ballpoint ink formulation comparison technique which is destructive that is, the case sample will be destroyed after the analysis. Motivated by the need to overcome such drawback, in this paper we develop a new non - destructive method based on Raman Spectroscopy (RS) . Ten brands of black ballpoint inks from five countries are collected, sampled, and compared via our method. Initial experimental results show that the separation percentage (SP) is over 90%, thus suggest that our new method maybe applicable.

关 键 词：拉曼光谱 黑色圆珠笔 书写字迹 无损检验 

分 类 号：D918.92[政治法律—法学]