L3_CHEM480_JCCYu - Cyanoacrylate Cases 1 Fluorescent dyes...

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Unformatted text preview: Cyanoacrylate Cases 1 Fluorescent dyes Rhodamine 6G Ardrox Basic yellow ….. Figure 14–17 Schematic depicting latent-print detection with the aid of a laser. A fingerprint examiner, wearing safety goggles containing optical filters, examines the specimen being exposed to the laser light. The filter absorbs the laser light and permits the wavelengths at which latent-print residues fluoresce to pass through to the eyes of the wearer. Courtesy Federal Bureau of Investigation, Washington, D.C. Alternate Light Source 2 Superglue/Rhodamine 6G White light Fluorescent Rhodamine 6G DFO 1,8-diazafluoren-9-one dissolve 0.05g of DFO in a mixutre of 4 ml Methanol and 2 ml acetic acid. dilute with 100 ml of 1,1,2 Tricholorotrifluoroethane (freon). immerse exhibits in freshly prepared solution for 5 seconds and allow to dry for 30 seconds, then repeat. place in oven at 100 0C for 10 minutes. Strict control of humidity is not required. 3 ...
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This note was uploaded on 04/02/2009 for the course CHM 480 taught by Professor Yu during the Spring '09 term at Sam Houston State University.

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L3_CHEM480_JCCYu - Cyanoacrylate Cases 1 Fluorescent dyes...

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