(Received 28 March 1983; accepted 7 July 1983)
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A radial gel diffusion method utilizing urease and bromthymol blue has been developed for urine stain identification. Urea, present in urine in relatively high concentrations, can be detected from urine stain extracts. This technique provides both qualitative and quantitative results, and is sensitive enough to detect 0.078 µg/µL of urea.
Graduate student, University of Illinois, Maywood, IL
Forensic scientist, Bureau of Scientific Services, Maywood Forensic Science Laboratory, Maywood, IL
Coordinator for serology, Illinois Department of Law Enforcement, Bureau of Scientific Services, Training and Applications Laboratory, Joliet, IL
Stock #: JFS11710J