摘要
目的研究高效、环保的手印显现技术,拓展黄色荧光粉YAG:Ce,Gd的应用范围。方法采用液相沉积法对黄色荧光粉进行氨基化修饰,并对修饰前后粉体进行红外光谱、光学性能及表面形貌的分析。结果氨基化的黄色荧光粉能够成功地显现非渗透性和渗透性客体上的油脂手印和汗液手印。结论本方法使手印显现效果达到高效、无毒、无损的要求。
Objective To enlarge the usage of YAG：Ce,Gd yellow fluorescence particles in fingerprint development.Method The yellow fluorescence powder modified with amidocyanogen was prepared through liquid coating-sediment method and applied to develop the fingerprint on porous and non-porous surface.The spectrums of FT-IR and luminescence property of modified material were compared with that of non-modified material,respectively.Results The oil fingerprint and sweat fingerprint on porous and non-porous surface were developed with modified YAG：Ce,Gd fluorescence powder successfully.Conclusion This method can be used for developing fingerprint.
出处
《刑事技术》
2010年第2期14-16,共3页
Forensic Science and Technology
基金
公安部应用创新计划项目(2007YYCHHBST067)
