METHOD DETERMINING WATER-SOLUBLE DYES

摘要

FIELD: physical-chemical methods of study and analysis of materials by their division into ingredients ( components ). SUBSTANCE: invention is meant for determination of content of dyes in materials by method of liquid chromatography. According to method sample is prepared, then acetone and sodium sulfate are added into it and liquid chromatography with alternating composition of eluent is conducted. EFFECT: possibility of analysis of both natural and artificial dyes in single sample. 7 cl, 5 dwg