喷墨打印墨水和墨迹可挥发性成分的GC-MS检验  

Determination of volatile components in ink-jet printing by GC-MS

作　　者：廉哲 杨瑞琴[1] LIAN Zhe;YANG Rui-qin(People’s Public Security University of China,Beijing 100038,China;Institute of Forensic Science,Ministry of Public Security,Beijing 100038,China)

机构地区：[1]中国人民公安大学刑事科学技术学院,北京100038 [2]公安部物证鉴定中心,北京100038

出　　处：《化学研究与应用》2020年第8期1349-1356,共8页Chemical Research and Application

基　　金：国家重点研发计划项目(2016YFC0800705)资助。

摘　　要：为研究喷墨打印文件的比对区分和溯源技术,建立了一种墨水可挥发性成分的GC-MS分析方法,分别对90种常见市售喷墨打印墨水、纸张墨迹和假币墨迹中的可挥发性成分进行了分析。研究发现,喷墨打印墨水中含有甘油、二甘醇、三甘醇、吡咯烷酮等极性溶剂;同一型号不同颜色的墨水使用相近的配方;不同厂家墨水的配方存在差异;墨水中的可挥发性成分可在纸张中存在较长时间。据此对4起实际案例中缴获的喷墨打印制作的假币进行了检验,检出若干种溶剂成分,通过溶剂特征对假币进行了比对,相关两起假币案件得到串并。本方法筛选出的部分特征溶剂可用于喷墨打印文件的比对区分,并为相关案件的溯源串并提供技术情报。In order to study the ink-jet printing distinguishing and source tracing,a GC-MS method was established.The volatile components of 90 kinds of common commercial ink-jet printing ink,inkjet-printing-paper and counterfeit notes were analyzed respectively.It is found that the ink-jet printing ink contains polar solvents such as glycerin,diethylene glycol,triethylene glycol and pyrrolidone;the inks of different colors from the same type use similar formula;the formulas of different manufacturers are different;the volatile components in the ink can exist for a long time in the paper.The counterfeit notes were compared by solvents analysis,and two cases were connected.This method is useful for the comparison and discrimination of ink-jet printing documents by characteristic solvents selected comparison,can be used for provide technical information for case string and tracing.

关 键 词：喷墨打印墨水 可挥发组分 甘油 吡咯烷酮 假币 

分 类 号：O657.7[理学—分析化学]