Bromine is measured in flame-resistant wool fabric by x-ray fluorescence spectrometry with a relative precision of 3 to 8% and relative accuracy of better than 10%. The method computes the bromine concentration from fluorescence measurements of the sample, and a thin film standard, and two measurements of attenuation by the sample. Deviations of 10 to 20% from a straight-line relationship of x-ray counts to bromine concentration are accounted for. X-ray fluorescence is generally useful for routine analyses of bromine in textiles and has advantages over wet chemical analysis.
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NelsonK. H.BrownW. D.StaruchS. J., Rapid Determination of Bromine-Containing Flame Retardants on Fabrics, Textile Res. J.43, 357–361 (1973).
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