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ASTM International - ASTM E2227-02(2008)

Standard Guide for Forensic Examination of Non-Reactive Dyes in Textile Fibers by Thin-Layer Chromatography

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Organization: ASTM International
Publication Date: 15 March 2008
Status: inactive
Page Count: 6
ICS Code (Forensic science): 07.140
ICS Code (Physicochemical methods of analysis): 71.040.50
significance And Use:

Forensic analysis of fiber colorants using TLC should be considered for single fiber comparisons only when it is not possible to discriminate between the fibers of interest using other techniques,... View More

scope:

1.1 Metameric coloration of fibers can be detected using UV/visible spectrophotometry. If spectrophotometry is restricted to the visible spectral range only, differences in dye components may remain undetected. One method of detecting additional components is to use thin-layer chromatography (TLC). TLC is an inexpensive, simple, well-documented technique that, under certain conditions, can be used to complement the use of visible spectroscopy in comparisons of fiber colorants. The principle of the method is that the dye components are separated by their differential migration caused by a mobile phase flowing through a porous, adsorptive medium.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Document History

September 1, 2013
Standard Guide for Forensic Examination of Non-Reactive Dyes in Textile Fibers by Thin-Layer Chromatography (Withdrawn 2022)
5.1 Forensic analysis of fiber colorants using TLC should be considered for single fiber comparisons only when it is not possible to discriminate between the fibers of interest using other...
ASTM E2227-02(2008)
March 15, 2008
Standard Guide for Forensic Examination of Non-Reactive Dyes in Textile Fibers by Thin-Layer Chromatography
Forensic analysis of fiber colorants using TLC should be considered for single fiber comparisons only when it is not possible to discriminate between the fibers of interest using other techniques,...
August 10, 2002
Standard Guide for Forensic Examination of Non-Reactive Dyes in Textile Fibers by Thin-Layer Chromatography
Forensic analysis of fiber colorants using TLC should be considered for single fiber comparisons only when it is not possible to discriminate between the fibers of interest using other techniques,...
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