FIELD: chemistry.
SUBSTANCE: invention relates to analytical chemistry and a method for quantitative determination of imidazole derivatives (imidazoline group). Proposed method comprises dissolving an analysed sample in purified water or alcohol, holding on a heated water bath (30-40°C) until complete dissolution, cooling and diluting with same solvent to mark; treating an aliquot part of prepared solution successively with an alkaline 1% solution of diazotized n-anisidine and 2.5 ml of 0.1 n solution of ammonium hydroxide, then photoelectrocolorimetry of obtained coloured solutions.
EFFECT: use of method provides high-accuracy determination of imidazole derivatives.
1 cl, 11 tbl, 1 dwg
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