Ion Chromatographic Determination of Some Metals as Anion Complex with EDTA

Abstract

Different modes of kinetic detection in ion chromatography have been proposed. Equipment schemes have included an ion chromatograph with a conductometric detector and multichannel flow mounting with a spectrophotometric detector. Complex formation of Cr(III) with EDTA accelerated by carbonate has been used as a model indicator reaction. This system has proved to be both selective and universal. A simultaneous determination of carbonate, Cr(III) and various inorganic anions has been possible. A number of objects have been analyzed.