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NCJ Number:	113153

Title:	Comparison of Laser and High-Intensity Quartz Arc Tubes in the Detection of Body Secretions

Journal:	Journal of Forensic Sciences Volume:33 Issue:4 Dated:(July 1988) Pages:929-945

Author(s):	M J Auvdel

Date Published:	1988

Annotation:	This study compared the Spectra-Physics Model 171-19, 18-W argon ion laser and Laser Sonics Model CS-2, 200-mW air-cooled argon ion laser with Payton Scientific's Luma-Print, high-intensity quartz arc tube in their capabilities for detecting body secretions.

Abstract:	The light sources were evaluated for detection limits for various biological stains. The evaluated stains had been made during prior research and stored at room temperature for approximately 2 years. The stains were a serial dilution made from semen, saliva, and sweat specimens and were examined using both laser light sources and the high-intensity quartz arc tube. All of the instruments tested proved to be excellent for the detection of body fluid secretions. The Luma-Print light had a better detection rate for the semen, saliva, and sweat stains examined. The detection rates were the same for both the 18-W and 200-mW lasers. The major disadvantage of the 18-W laser is its cost compared to the other instruments. Other disadvantages are its higher power consumption, immobility, and plasma tube replacement cost. 6 tables, 21 figures, 5 references. (Author abstract modified)

Main Term(s):	Blood/body fluid analysis

Index Term(s):	Saliva sample analysis; Scientific techniques

Page Count:	17

Format:	Article

Type:	Test/Measurement

Language:	English

Country:	United States of America

Note:	*This document is currently unavailable from NCJRS.



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