论文部分内容阅读
目的:研究血迹亮蓝乙醇溶液是对常见粗糙客体潜在血手印显现技术;方法:血迹亮蓝溶解于75%乙醇中,喷涂在遗留有潜血手印的常见粗糙客体表面;结果:经血迹亮蓝乙醇溶液处理后,可见客体表明出现亮蓝色的手印增强印痕;与传统的四甲基联苯胺潜血显现试剂比较,血迹亮蓝乙醇溶液所显的潜血手印花纹更为反差明显,特征突出;结论:血迹亮蓝乙醇溶液能够有效显现出粗糙客体表面潜在血手印,且能够作为四甲基联苯胺的后增强试剂。若得到推广应用,将能够有效提高犯罪现场上潜血印痕的发现率、提取率和利用率。
OBJECTIVE: To study the potential blood-fingerprints technique of common rough objects in blood-bright blue ethanol solution.METHODS: The blood samples were dissolved in 75% ethanol and sprayed on the surface of common rough objects with occult fingerprints. Results: Compared with the traditional tetramethylbenzidine occult blood imaging reagent, the occult bloodprints of the bright blue ethanol solution showed more contrast and prominent features.Conclusion: Brilliant blue ethanol solution of blood can effectively show the potential of bloody handprint on the surface of rough objects, and can be used as tetramethyl benzidine post-enhancement reagent. If popularized and applied, it will be able to effectively increase the detection rate, extraction rate and utilization rate of occult blood impressions on the crime scene.