The analysis of dyes and dye intermediates by physicochemical methods. II. Thin-layer chromatographic and spectrophotometric behavior of some water-insoluble azo-pigments

J. Barek, A. Berka, V. Borek

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Thin-layer chromatographic behavior of 5 azo-pigments was studied, suitable eluants were found, and the Rf values were determined. Spectrophotometric behavior of these substances in acetonitrile was studied, as well as the influence of acids and bases on the studied spectra. The validity of the Lambert-Beer law in a concentration region from 1 × 10-5 to 7 × 10-5M was verified.

Original languageEnglish
Pages (from-to)311-317
Number of pages7
JournalMicrochemical Journal
Issue number3
Publication statusPublished - 1 Jan 1984
Externally publishedYes


ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

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