利用显微分光光度计鉴别黑色中性笔墨水  

Using Microspectrophotometry to Distinguish Black Gel Ink

作　　者：叶卓龙 王长亮 崔岚[1] YE Zhuolong;WANG Changliang;CUI Lan(Criminal Investigation Police University of China,Shenyang 110000,China;Shanghai Municipal Bureauof Forensic Sciences,Shanghai 20000,China)

机构地区：[1]中国刑事警察学院,辽宁沈阳110000 [2]上海市刑事科学技术研究院,上海200000

出　　处：《中国司法鉴定》2019年第3期40-44,共5页Chinese Journal of Forensic Sciences

基　　金：十三五国家重点研发计划(2016YFC0800705);上海市现场物证重点实验室开放课题基金资助(2017XCWZK10);公安部科技强警基础工作专项项目资助(2017GABJC30);中国刑事警察学院研究生创新能力提升项目

摘　　要：目的建立黑色中性笔墨迹的光学检验方法,实现不同种类黑色中性笔的检验鉴别。方法应用显微分光光度计对72种不同品牌及型号的黑色中性笔进行快速无损分析,对反射光谱图进行分类并定量分析。结果根据黑色中性笔的反射光谱图,将黑色中性笔分成了四类,并根据特征峰的数量将第一类进一步分成三小类。四大类反射光谱图荧光特性和实验数据验证了分类的合理性,为黑色中性笔的鉴别提供了数据,黑色中性笔的区分率为52.90%。结论显微分光光度法是一种快速、无损的方法,为鉴别黑色中性笔提供了依据。Objective To establish an optical identification method of black gel ink and achieve identification of black gel ink of different kinds.Method Black gel ink of 72 different brands and types were analysed quickly and nondestructively by Microspectrophotometry.The Reflex spectrogram was classified and analysed quantificationally.Result According to the basic trend of the spectrogram.of black gel,black gel ink can be divided into four classes.Furthermore,the main class spectrogram can be divided into three subclasses according to the amount of featured peak.The fluorescence of the black gel ink and experimental data verified the reasonability of classification and provided data to the discrimination of black gel ink.According to calculation of classification results, the discriminating rate of black gel was 52.90 %.Conclusion Microspectrophotometry is a quick,nondestructive and efficient method,which provides reference for the discrimination of black gel ink.

关 键 词：显微分光光度计 黑色中性笔 反射光谱 定量 

分 类 号：DF794.2[政治法律—诉讼法学]