Copper, lead and zinc sulfide concentrates. Determination of cadmium - Acid digestion and inductively coupled plasma atomic emission spectrometric method1 Scope This document specifies an acid digestion and inductively coupled plasma atomic emission spectrometric (ICP AES) method for the determination of the mass fraction of cadmium in copper, lead and zinc sulfide concentrates as follows: a) for copper sulfide concentrates, the method is applicable to the determination of mass fractions of cadmium from 0,01 % to 0,30 %; b) for lead sulfide concentrates, the method is applicable to the determination

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