印油与印油印迹比对检验方法的影响因素研究

HPLC analysis and comparison of stamp ink and stamp impression on paper

目的针对印油印迹形成过程中可能存在的影响因素,研究印油与印油印迹比对分析方法中可能存在的风险。方法采用溶剂提取,高速离心,过膜的简单的前处理方法,然后高效液相色谱分析,用色谱峰峰面积的相对含量来判定印油印迹与印油之间的差异。结论印泥印油、印油印迹与印油之间差异很小;而印台印油、渗透印油、翻转印油、印油与印油印迹比对时,存在一定影响。

In this article, we analyzed 25 samples of stamp inks and their stamp impressions on paper by HPLC, the results showed that the chromatography difference of ink paste and its stamp impression was little, hut for oil-based ink, water-based ink and their stamp impression, the chromatography difference was significant.