酸性红94显现潮湿非渗透性客体表面潜在手印应用研究

发布时间：2018-06-15 22:29

本文选题：潮湿客体 + 潜在手印　；参考：《科学技术与工程》2017年21期

【摘要】：潮湿客体表面潜在手印的显现是物证检验鉴定过程中所面临的一大难题,利用无毒害的生物染色试剂酸性红94结合相转移催化剂对潮湿客体表面潜在手印进行了显现研究。通过大量样本实验考察了显现试剂的最佳配方、最佳适用条件、灵敏度以及不同客体、不同浸泡时间对显现效果的影响。实验结果表明,该方法灵敏度高,显现手印纹线清晰连贯、与背景反差明显。当酸性红94浓度为5 mmol/L时,其显现效果最佳,对于水中浸泡50小时以上的客体仍然能表现出良好的显现效果。
[Abstract]:The appearance of potential hand prints on wet object surface is a difficult problem in the process of physical evidence examination and identification. The appearance of potential hand prints on wet object surface is studied by using non-toxic acid red 94 as a biolayer combined with phase transfer catalyst. Through a large number of sample experiments, the effects of the optimum formulation, optimum conditions, sensitivity, different guest and different soaking time on the effect of the display reagent were investigated. The experimental results show that the method has high sensitivity, clear and coherent fingerprint lines, and obvious contrast with background. When the concentration of acid red 94 is 5 mmol / L, the effect of acid red 94 is the best, and it can still show good effect for the guest immersed in water for more than 50 hours.
【作者单位】：中国人民公安大学刑事科学技术学院;北京市公安局刑侦总队;
【基金】：中国人民公安大学基本科研项目(2016JKF01102)资助
【分类号】：D918.91

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