Оптимизация условий отделения хрома и железа для ИСП-АЭС определения мышьяка и сурьмы в стали

Abstract

For the first time is given a new approach to solve the problem of separation of trace analytes (As, Sb) from matrix elements (Fe, Cr) forming steels. Matrix elements provide an interfering effect on the results of arsenic and antimony determination employing the ICPAES analysis. It is found that required deposition conditions of macroamounts (Fe, Cr) should meet the molar ratio NaF/HF close to 1 in aim to inhibit analytes coprecipitation.