摘要
Abstract
ABSTRACT:ObjectiveTo determine the dyeing effect of Ardrox fluorescent liquid on non-porous surfaces after development of fingerprints by cyanoacrylate glue.MethodsStudy was carried out to establish the method to enhance the fingermarks fumed by cyanoacrylate glue using Ardrox fluorescent liquid. Comparative experiments were performed on 12 kinds of common plastic, glass or other non-porous objects with rhodanmine 6G, BBD and gentian violet solution, respectively. All experiments were ensured to be coupled with the most optimized conditions and fuming time. Fingermark aging period test of 1, 3, 5, 7 and 15 days with cyanoacrylate-Ardrox approach was demonstrated as well.ResultsOn plastic, glass and other non-porous substrates, the cyanoacrylate glue-Ardrox fluorescent liquid method had shown the developed images, obviously superior to those with rhodanmine 6G, BBD and gentian violet, with the most signiifcant effects on tinfoil, black plastic bags and zip-top cans. On the surfaces with light or dark colors, Ardrox usually be able to demonstrate the signiifcant effects of ifngermarks except those on disks, of which the background irradiated by UV light weakened the contrast of relfection. Ardrox lfuorescent liquid should be used as quickly as possible, and the best performance appeared within 24 hours after made up. The pictures needed to be taken immediately right after dyeing. According to the data, samples left over for 15 days or less could be clearly developed, while the effects of dyeing reduced signiifcantly after 15 days.Conclusions The developing method with cyanoacrylate glue and Ardrox lfuorescent liquid features reliability, distinct imaging and high lfuorescence.关键词
手印/502胶/Ardrox荧光液/非渗透客体Key words
latent ifngermarks/cyanoacrylate glue/Ardrox lfuorescent liquid/non-porous surface分类
社会科学
