【摘 要】
:
采用高效液相色谱法对27种不同产地、不同牌号的黑色圆珠笔字迹色痕的提取液进行了种类分析,获得了较好的分析结果。并在此基础上,对黑色圆珠笔字迹进行了光照、加热的人工老
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采用高效液相色谱法对27种不同产地、不同牌号的黑色圆珠笔字迹色痕的提取液进行了种类分析,获得了较好的分析结果。并在此基础上,对黑色圆珠笔字迹进行了光照、加热的人工老化处理,依据字迹色痕提取液中染料峰面积比值随老化时间的变化,探讨了黑色圆珠笔字迹色痕中染料的变化规律,从而为黑色圆珠笔字迹形成时间的鉴定奠定了基础。
High performance liquid chromatography (HPLC) was used to analyze the kinds of extracts of 27 black ballpoint pens with different grades and origins, and the better analytical results were obtained. On the basis of this, the black ballpoint pen handwriting was subjected to light and heating for artificial aging treatment. According to the change of dye peak area ratio with aging time, the change rule of dye in the black ballpoint pens writing trace was discussed, Which laid the foundation for the black ballpoint pen writing time identification.
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