热重-质谱法研究蓝色签字笔墨水的人为老化  

Artificial Ageing of Blue Gel Pen Inks on Paper by TDG-MS

作　　者：彭奇[1] 林祥[2] 张旭东[1] 陈瑞平[1] 张朝和[2] 黄子祥[1] 林旋[1] 杜少武[1] 

机构地区：[1]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,福建福州350002 [2]福建省公安厅刑事科学技术研究所,福建福州350001

出　　处：《质谱学报》2009年第4期234-238,共5页Journal of Chinese Mass Spectrometry Society

基　　金：国家自然科学基金(20673117);教育部留学回国人员科研启动基金;福建省科技计划重点项目(2007Y0034)资助

摘　　要：采用热重-质谱联用(TDG-MS)技术研究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。热重-质谱联用仪跟踪分析了签字笔墨水中易挥发物质离子流的成分以及它们随时间的变化。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检验鉴定方面的进一步研究提供科学依据。TDG-MS was applied to study the composition changing of blue gel pen inks on paper during artificial ageing at the time of this study. Mass spectroscopy was used to track and analyze the components of ion current for those compositions volatilizing easily from the blue gel pen inks on paper in the experiment. Research on artificial ageing for serials blue gel pen inks on paper under different conditions was performed in this paper. One of the key probes, glycol was found in the experiment, and the time-dependent changing of glycol was studied in the artificial ageing experiment. Principles and rules for glycol changing in artificial ageing of blue gel pen inks on paper substrates were concluded and discussed as well. The principles and rules can be used in the further research on relative ageing of documents written by various gel pens.

关 键 词：热重 质谱 蓝色签字笔 人为老化 

分 类 号：O657.63[理学—分析化学]