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首先对增强汗潜手印“502”熏显后的反差方法进行了新的尝试,广泛收集了多种非渗透性客体和半渗透性客体检材,利用“502”胶贴附法对检材上汗潜手印进行固定,采用化学染色剂滴染法对其进行染色,冲洗后在自然光下观察,得出吖啶黄和考马斯亮兰的甲醇溶液染色效果最佳;其次配置荧光试剂和氯化锌混合液进行荧光增强实验,并对其染色效果与荧光试剂单独染色效果进行比较,荧光试剂和氯化锌混合液在增强反差方面效果比较明显,比荧光试剂单独染色的增强效果好。
First of all, a new attempt was made to enhance the contrast method after sweat latent handprint “502” smoked significantly. A large number of non-porous objects and semi-permeable objects were collected. The “502” On the detection of sweat latent fingerprints on the fixed, stained with a chemical dye drip method, rinsed in natural light observation, drawn acridine yellow and coomassie brilliant white methanol solution staining best; followed by the configuration of fluorescent reagent And zinc chloride mixture fluorescence enhancement test, and its staining effect and fluorescence reagent alone staining effect compared fluorescent reagent and zinc chloride mixture to enhance the contrast effect is more obvious than fluorescent reagent alone dye enhancement effect is better .