METHOD OF QUANTITATIVE ANALYSIS FOR HIGHER CARBOXYLIC ACIDS AND N-ACYLDERIVATIVES OF AMINOACIDS ON THEIR BASIS

摘要

The invention relates to the field of analytical chemistry. Summary of the Invention consists in sequential processing of the sample analyzed dioxane and ammonium sulfate, methylation with diazomethane and chromatography of the resulting mixture, in the treatment of analysis sample solution of phosphoric acid to pH 3, dioxane, saturated ammonium sulfate, aliquot portion of the organic phase is treated with it first with methanol, then was methylated with diazomethane and the resulting mixture was chromato- tografiruyut.