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NCJRS Abstract

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NCJ Number: 164955 Find in a Library
Title: Importance of Thin Layer Chromatography in the Analysis of Reactive Dyes Released From Wool Fibers
Journal: Journal of Forensic Sciences  Volume:41  Issue:6  Dated:(November 1996)  Pages:1042-1045
Author(s): K G Wiggins; S R Crabtree; B M March
Date Published: 1996
Page Count: 4
Type: Report (Technical)
Format: Article
Language: English
Country: United States of America
Annotation: Samples of reactively dyed wool were obtained from a range of manufacturers and distributors and "digested" by alkaline hydrolysis to yield colored solutions.
Abstract: Bulk samples of red reactively dyed wool were compared to determine whether fiber dissolution and subsequent thin layer chromatography (TLC) would yield additional information to that generated by techniques already used in casework. Several single fibers selected from color pattern cards and casework samples of dye manufacturers were also tested using TLC after their dyes had been successfully extracted. TLC analysis of reactive dyes yielded important additional information, over and above that obtained from techniques such as comparison microscopy and visible light microspectrophotometry. Colored solutions obtained from single fibers were analyzed by TLC and reproducible results were obtained from a range of fiber lengths. 6 references, 1 table, and 4 figures
Main Term(s): Science and Technology
Index Term(s): Chromatography; Criminal investigation; Criminalistics; Evidence identification; Forensic sciences; Hair and fiber analysis
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