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.
出处
《刑事技术》
北大核心
2000年第3期28-29,共2页
Forensic Science and Technology
关键词
拉曼光谱
黑色圆珠笔
书写字迹
无损检验
raman spectroscopy, black ballpoint ink, separation percentage, raman shift
