Analysis of Acidic and Cationic Dyes by Thin Layer Chromatography
薄层色谱法分析酸性和阳离子染料

This paper describes the selection of solvent system of thin layer chromatography(TLC) by method of the correlation coefficient for the separation of acidic and cationic dyes. The acidic and cationic dye mixture was extracted from the same coloured wool fiber and acrylic fiber samples. The two solvent systems with smallest correlation coefficients could offer more informations for the identification of the dyes. The method is simple, accurate, effective and can be applied to examine dyes on the textile by selection of TLC solvent system in the forensic science laboratories.