直接耐晒黄ARL显现加层油手印的研究

Development of oil fingerprints by direct light yellow ARL

目的建立显现渗透性较强客体上加层油手印的一种优化配方。方法利用单因素实验法对直接耐晒黄ARL显现液中的4种成分的用量分别进行筛选,得到一种最佳配比,再通过时效性实验,观察油手印的不同遗留时间对显现效果的影响。结果实验得到优化配方是,4mL 0.5%直接耐晒黄ARL液+4mL甲醇+1.6mL氯化锌溶液,充分搅拌后加入0.6mL SD-8去油灵。结论该配方显现出的纹线清晰,直接耐晒黄ARL显现液对不同客体上的新鲜、较陈旧加层油手印都有较好的显现效果。

Direct light yellow ARL consisted of four components： methanol, sodium sulfate, butter of zinc and surfactant. In this paper, the optimized formula of direct light yellow ARL was represented and oil fingerprints were developed with this reagent experimentally. The results indicated that oil fingerprints, no matter fresh or aged, can be developed effectively by direct light yellow ARL.