| 基于超低温环境下的DFO荧光手印增强技术 |
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| 引用本文： | 张剑.基于超低温环境下的DFO荧光手印增强技术[J].刑事技术,2010(1):20-22. |
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| 作者姓名： | 张剑 |
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| 作者单位： | 湖北警官学院,武汉,430034 |
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| 基金项目： | 公安部重点攻关计划项目2006ZDGGHBST003 |
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| 摘 要： | 目的研究超低温环境下DFO荧光手印增强技术。方法采用二级复迭式机械制冷，在超低温环境下增加DFO显现手印的荧光强度。结果温度对荧光物质的荧光强度有显著影响，当温度降至-40℃以后荧光强度随激发波长的加长而加强。结论本技术方法对常用纸张上DFO显现的手印荧光效果明显。
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| 关 键 词： | 超低温 DFO 指纹 |
Development of fingerprints using DFO at ultra-low-temperature condition |
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| ZHANG Jian.Development of fingerprints using DFO at ultra-low-temperature condition[J].Forensic Science and Technology,2010(1):20-22. |
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| Authors: | ZHANG Jian |
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| Institution: | ZHANG Jian(Hubei Uinversity of Police,Wuhan 430034,China) |
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| Abstract: | Objective To study the enhancement technique of fingerprints developed by DFO （1.8 diazafluoren-9-one）. METHOD The fingerprints were treated with DFO reagent and then were put into refrigeration, change the in the temperature to 120℃ at the rate of 20℃. RESULT The fingerprints were enhanced at the temperature of -40℃ and 575nm light. CONCLUSION The fingerprints on papers can be developed effectively with this method. |
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| Keywords: | DFO fingerprint ultra-low-temperature |
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