【作者】 彭奇； 林祥； 张旭东； 陈瑞平； 张朝和； 黄子祥； 林旋； 杜少武；

【Author】 PENG Qi~1 LIN Xiang~2 ZHANG Xu-dong~1 CHEN Rui-ping~(1*) ZHANG Chao-he~2 HUANG Zi-xiang~1 LIN Xuan~1 DU Shao-wu~1 1.State Key Lab of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China 2.Forensic Science Institute,Public Security Bureau of Fujian Province,Fuzhou 350001,China

【机构】 中国科学院福建物质结构研究所,结构化学国家重点实验室； 福建省公安厅刑事科学技术研究所；

【摘要】 首次采用热重-质谱联用的(TDG-MS)技术研究了纸张上蓝色签字笔墨水在人为老化过程中组分的变化情况。热-质联用的质谱仪跟踪分析了签字笔墨水中易挥发物质离子流的成份以及它们随时间的变化。文中研究了纸张上多种常用蓝色签字笔的墨迹在程序升温加热条件下的人为老化,探讨总结了纸张载体上签字笔墨水在加热人为老化过程中的一些变化规律。该规律将为各种签字笔字迹相对书写时间、绝对书写时间检验鉴定方面的进一步研究提供科学依据。更多还原

【Abstract】 The TDG-MS was first applied to study the compositional changes of blue gel pen inks on paper during artificial age- ing.Mass spectroscopy was used to track and analyze the components of ion current which volatilized easily from the blue gel pen inks on paper in the experiment.Artificial aging for blue gel pen inks on paper under different conditions was Investigated in this paper;principles and rules for artificial aging of gel pen inks on paper substrates were concluded and discussed as well The prin- ciples and rules can be used in the further research on relative and absolute aging of documents written by various gel pens.更多还原