DESI-HRMS-HDI在添改字迹鉴定中的应用研究  

Research on the Application of DESI—HRMS-HDI in the Ink Identification of the Signature Pen

作　　者：吴比跃 张广为 刘博[2] WU Biyue;ZHANG Guangwei;LIU Bo(Harbin Public Security Bureau,Harbin 150010;Heilongjiang Province Public Security Department,Harbin 150000)

机构地区：[1]哈尔滨市公安局,黑龙江哈尔滨150010 [2]黑龙江省公安厅,黑龙江哈尔滨150000

出　　处：《中国司法鉴定》2021年第1期69-72,共4页Chinese Journal of Forensic Sciences

摘　　要：目的通过电喷雾解吸电离(DESI)—高分辨飞行时间质谱(HRMS-HDI)成像技术建立了一种新型添改字迹鉴别技术。方法对10支黑色签字笔书写的“11”被添改成“47”的90个样本用分子成像技术测试。结果该技术可将84个被添改的原始字迹“11”以二维成像方式显现。结论DESI-HRMS-HDI技术无需检材预处理,在大气压下即可进行操作,接近无损检验,操作简便,是一种有效的文件检验技术,适用于文件材料鉴别和篡改文件鉴定。Objective A new identification technology was established through desorption electrospray ionization(DESI)-Time of Flight Mass spectrometry imaging(TOFMS-HDI)technology in this paper.Methods 90 samples of“11”prepared by 10 black signature pens to“47”were tested.Results The original handwriting“11”could be showed in two-dimensional images.Conclusion DESI MS-HDI technology is an effective document inspection technique without the need for sample pretreatment,which is easily used under the atmospheric pressure and non-destructive inspection and suitable for document identification and tampering with document identification.

关 键 词：电喷雾解吸电离 高分辨质谱 分子成像 篡改文件鉴定 

分 类 号：DF794.2[政治法律—诉讼法学]