含硫聚合物制备及其在手印显现中的应用初步探究  

A Kind of Sulfur-containing Polymer: Preparation and Exploratory Utilization into Fingerprint Development

作　　者：秦旗 李孝君[1] 吕昱帆 陈子龙[1] 王子政[1] 薛静[1] 吴浩[1] 胡文锋[1] 刘寰[1] QIN Qi;LI Xiaojun;LÜYufan;CHEN Zilong;WANG Zizheng;XUE Jing;WU Hao;HU Wenfeng;LIU Huan(Institute of Forensic Science,Ministry of Public Security,Beijing 100038,China)

机构地区：[1]公安部物证鉴定中心,北京100038

出　　处：《刑事技术》2022年第2期207-210,共4页Forensic Science and Technology

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(2019JB043)。

摘　　要：目的 制备一种含硫聚合物,并初步探索该聚合物在手印显现中的应用。方法 设计合成路线并制备含硫聚合物,对该聚合物进行相关化学物质表征,利用该聚合物显现遗留在金属铜表面不同状态下的手印,观察其手印纹线。结果 成功制备该含硫聚合物;该含硫聚合物可实现:1)铜片上汗潜手印的显现;2)铜片上汗潜手印经水洗涤后的显现;3)铜片上汗潜手印经洗涤液洗涤、擦拭后的显现。结论 该含硫聚合物具有显现金属表面汗潜手印的潜能,可用于显现金属铜表面疑难手印。Objective To prepare a kind of sulfur-containing polymer for its exploratory utilization into fingerprint development. Methods The sulfur-containing polymer was prepared under a designed synthesis route, having been characterized of its chemical attribution with certain related physicochemical resorts. Latent sweat fi ngerprints were made on copper sheet surfaces in different states, successively sealed with the synthesized polymer into a reaction bottle for conditionvarious development. Observation was carried out ab out the development effect. Results The sulfur-containing polymer was successfully prepared, having achieved of developing the latent sweat fingerprints on copper sheets where whether those fingerprints were intact or undergone with water washing or detergent washing plus sponge wiping before development.Conclusions The sulfur-containing polymer is potential to develop latent sweat fi ngerprint on metal(e.g., copper) surface,capable of being utilized to develop diffi cult-to-handle fi ngerpri nts on copper sheet surface.

关 键 词：含硫聚合物 制备 铜片 手印显现 

分 类 号：DF794.1[政治法律—诉讼法学]