METHOD OF DETERMINING CALCIUM ASCORBATE IN BIOLOGICALLY ACTIVE ADDITIVES USING VOLTAMMETRY TECHNIQUE

摘要

FIELD: chemistry.;SUBSTANCE: method of determining calcium ascorbate in biologically active additives includes a sample preparation step and voltammetric determination. The invention involves conducting anodic voltammetry on a glassy-carbon indicator electrode at potential of +0.32 V relative a saturated silver chloride electrode on a background of 0.1 mol/dm³ potassium chloride, with a direct current form of potential sweep at a rate of 30 mV/s with the region of the determined content of calcium ascorbate from 1.5·10^-5 to 6.7·10^-4 mol/dm³.;EFFECT: efficient sensitive and rapid determination of calcium ascorbate in biologically active additives by voltammetry.;1 ex, 1 tbl, 2 dwg