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Application of TLC and HPTLC in the analysis of semipermanent hair dyes
Author(s) -
MARIANI EMILIA,
BARGAGNA ALBERTO,
LONGOBARDI MARIO,
DORATO STEFANO
Publication year - 1994
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/j.1467-2494.1994.tb00078.x
Subject(s) - hair dyes , silica gel , chemistry , chromatography , shampoo , nitrobenzene , anthraquinone , organic chemistry , dyeing , catalysis
Synopsis Semipermanent or direct colouring includes any product capable of affecting to some extent a change in the natural hair colour that will last through at least five shampoo washings. Semipermanent dyes are simple and easy to use, as opposed to oxidation dyes, and are normally formulated for application on nonbleached hair. Following increases in supply of such formulations, we have started an analysis for quality control purposes of 21 commonly marketed dyestuffs (nitroaminobenzenes, anthraquinone and Arianor dyes) and 20 colouring products manufactured by four leading companies. By using TLC (silica gel and reversed phase) and HPTLC (silica gel) procedures we have determined relative retention values to 1,3‐diamino‐4‐nitrobenzene of standards and dyes found in the commercial products. All the values reported (standards and samples) are the average of five analytical results (+/‐SD).