【作者】 杨瑞琴； 王珂；

【Author】 Wang Ke,Yang Ruiqin (Forensic Science Development of Chinese People’s Public Security University,Beijing 100038)

【机构】 中国人民公安大学刑事科学技术系；

【摘要】 以巯基丙酸(MPA)为修饰剂合成了水溶性荧光量子点ZnSe溶液,并用此溶液对手印进行显现。考察了适宜显现的客体范围,同时对不同客体上的遗留手印进行了批量显现与统计分析,进一步对胶带上的手印进行了显现,与常规方法相比较,该方法具有背景污染小、显现陈旧手印能力强的优势。更多还原

【Abstract】 Water - soluble fluorescent ZnSe with Cd quantum dots（QDs ） synthesized by using mercaptopropionic acid（MPA） as modifier are used to develop fingerprint.We explored the scope of appropriate objects used for fingerprint developing,and did some statistical analysis of fingerprint left for different time.Furthermore,we developed fingerprint on adhesive tapes.Compared with the traditional methods,the fingerprints treated with quantum dots solution of Zn_0.77Cd_0.23Se were better,such as little background adsorption and showed more advantages on developing old fingerprints.更多还原