茚二酮-硝酸银复合显现膜应用于纸质客体上潜手印的显现研究  

Study on the Appearance of Latent Fingerprints on Paper Objects Using Indendione-silver Nitrate Composite Film

作　　者：李书蒙 蔺云亮 刘青[3] Li Shumeng;Lin Yunliang;Liu Qing(Department of Criminal Investigation,Railway Police College,Zhengzhou 450053,China;Kundu Branch of Inner Mongolia Baotou Public Security Bureau,Criminal Science and Technology Office,Baotou 014000,China;Unit 93121 of the People's Liberation Army,Dongcheng District,Beijing 100009,China)

机构地区：[1]郑州警察学院刑事科学技术系,河南郑州450053 [2]内蒙古包头市公安局昆都分局,刑事科学技术室,内蒙古包头014000 [3]中国人民解放军93121部队,北京100009

出　　处：《广东化工》2024年第8期109-111,114,共4页Guangdong Chemical Industry

基　　金：2021年度中央高校基本科研业务经费项目(2021TJJBKY020)。

摘　　要：指纹证据的研究一直是刑事科学的热点之一,其中潜在手印更是重中之重。潜在指纹的成分是由人体皮肤中各种腺体分泌的自然物质组成。基于指纹独一无二、终身基本不变的特性,该项目首先通过确定茚二酮、硝酸银化学试剂各自的最佳浓度,并将二者混合制备茚二酮-硝酸银复合显现膜作用于纸质客体上进行显现研究,同时观察遗留时间长短等因素的影响。通过探究茚二酮-硝酸银复合显现膜作用在打印纸,牛皮纸、相纸、滤纸等常见客体表面上潜在指纹显现的效果,以期更好地改进潜手印的显现方法,在显现潜手印方面获得效果稳定、应用范围广、操作简单、价格低廉具有较好应用前景的显现技术。Fingerprint evidence research has been one of the hot spots in criminal science,especially the latent fingerprints.The components of latent fingerprints are made up of natural substances secreted by various glands in the human skin.Based on the unique characteristics of fingerprints,the project first determined the optimal concentration of indanedione,silver nitrate reagents,the indenedione-silver nitrate composite developing film was prepared by mixing the two materials,and the effect of retention time on the film was studied.In order to improve the method of latent fingerprint display,the effect of indanedione-silver nitrate composite display film on the surface of printing paper,Kraft paper,photo paper and filter paper was studied,in the field of fingerprint display to obtain a stable effect,a wide range of applications,efficient and simple,low-cost has a good prospect of application of the display technology.

关 键 词：指纹 茚二酮 硝酸银 复合显现膜 纸质客体 

分 类 号：TQ[化学工程]