Spectrophotometric determination of chromium with Iodonitrotetrazolium chloride and Tetrazolium Violet.
The interaction of Iodonitrotetrazolium chloride and Tetrazolium Violet with chromium(VI) has been studied and the formation of ion-associates with a 1:1 composition in hydrochloric acid medium established. Extraction photometric methods for determination of chromium in steels and soils have been developed.
Kamburova
M
M
Department of Chemistry, Higher Institute of Agriculture, 4000 Plovdiv, Bulgaria.