METHOD DETERMINING WATER-SOLUBLE DYES Russian patent published in 2003 - IPC

Abstract RU 2212031 C1

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

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RU 2 212 031 C1

Authors

Ufimkin D.P.

Kovalenko D.N.

Dates

2003-09-10—Published

2002-05-14—Filed