METHOD FOR QUANTITATIVE DETERMINATION OF CERIUM IN STEELS AND ALLOYS

摘要

FIELD: metallurgy.SUBSTANCE: method includes dissolution of a sample of analysed alloy and separation of cerium from the base of the alloy and macrocomponents. At the same time the base and macrocomponents are separated from cerium by serial deposition and extraction of the alloy base and macrocomponents of the alloy from the solution. Deposition is carried out with sodium diethyldithiocarbamate, extraction - with dithizone in chloroform. After separation of the organic phase, the cerium content is detected in water phase with the spectrometric method.EFFECT: elimination of harmful influence of high contents of iron and other components of steel and alloy base, improved quantitative analysis, higher accuracy and reproducibility of the analysis method.1 tbl, 1 ex