乙醇为承载液时DFO指纹显现液的性能及应用

摘要

以乙醇替代CFC-113或HFE-7100作为承载波,考察了1,8-二氮芴-9-酮(1,8-Diaza- fluorene-9-one,DFO)对常用纸张和墨迹上指纹的显现性能.结果表明:乙醇为承载液时,DFO对常用纸张上指纹的显现效果无明显差异；除油性圆珠笔墨迹外,常用的中性签字笔墨迹、碳素墨迹、蓝黑墨迹、纯蓝墨迹、激光打(复)印件墨迹和报纸墨迹均不影响指纹显现.%The fingermark manifestation performance of 1, 8-diaza-fluorene-9-one(DFO)using ethanol as carrier solvent instead of CFC-113 or HFE-7100 on normal papers and inks were investigated. The results showed that:there was no obvious difference in fingermark manifestation performance on normal papers, and roller pen ink,carbonic ink, blue-black ink, pure blue ink, laser jet ink and newspaper ink all did not influence fingermark manifestation,except for oily ball-point pen ink.