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Citation: LIU Li, ZHAI Yu-Chun, CHENG K H. Application of Europium Doped Silica Gel Composite to Fingerprint Detection[J]. Chinese Journal of Applied Chemistry, ;2009, 26(4): 396-400. shu

Application of Europium Doped Silica Gel Composite to Fingerprint Detection

LIU Li ^a,b,, ,
ZHAI Yu-Chun ^a ,
CHENG K H ^c

1.
a School of Materials and Metallurgy, Northeastern University, Shenyang 110003;
2.
b Department of Forensic Science and Technology, China Criminal Police University, Shenyang 110035;
3.
c Department of Physics, Texas Technology University, Texas 79410, USA

Corresponding author: LIU Li,
Received Date: 9 April 2008
Available Online: 20 August 2008
Fund Project: 公安部应用创新计划项目(2007YYCXXJXY104) (2007YYCXXJXY104)

Europium(Ⅲ) doped silica gel composite was prepared by the sol-gel method,and the magnetic powder EMO for fingerprint detection was designed.Its application to the development of latent fingerprints left on some porous or nonporous surfaces and likely in crime scene was investigated.The effects of the aging of fingerprints and the stability of the labeled prints were discussed.The UV-Vis and fluorescence characterizations as well as the basic principle to detect fingerprints were presented.The results show that this EMO powder is an excellent development powder for the latent fingerprint detection.
- europium,
- doped,
- fingerprint,
- detection
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