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我国光敏印章使用越来越广泛,特别是在司法实践活动中对光敏印章印文识别及其形成时间鉴定的案例也越来越多,但是缺乏对光敏印章印文的识别和形成时间的切实可行的检验方法。为了在薄层色谱分析光敏印章印文过程中选择合适的提取液、展开剂,可以采用正交试验设计法对两种提取液、四种展开剂组合实验,并进行薄层色谱扫描。
The use of photosensitive stamps in our country is more and more widely used, especially in the judicatory practice, there are more and more cases of identifying photosensitive stamps and forming time. However, there is a lack of practical time to recognize and form photosensitive stamps The test method. In order to select the appropriate extraction solution and developing solvent in the process of TLC analysis photosensitive seal imprinting, the orthogonal experimental design method can be used to combine the two extraction solutions and the four developing agents and perform thin-layer chromatography scanning.