硫化铜和硫化锌精矿 铊的测定 酸消解和电感耦合等离子体质谱法

[中文适用范围]： 本文件规定了用酸消解和电感耦合等离子体质谱法（ICP-MS）测定硫化铜和硫化锌精矿中铊质量分数的程序。a）对于硫化铜精矿，本方法适用于测定铊质量分数从 0.000 1% 到 0.002 5%。b）对于硫化锌精矿，本方法适用于测定铊质量分数从 0.000 1% 到 0.025%。 [外文原描述]： This Document specifies an acid digestion and inductively coupled plasma mass spectrometry (ICP-MS) procedure for determination of the mass fraction of thallium in copper and zinc sulfide concentrates as follows. a) For copper sulfide concentrates, the method is applicable to the determination of mass fractions of thallium from 0,000 1 % to 0,002 5 %. b) For zinc sulfide concentrates, the method is applicable to the determination of mass fractions of thallium from 0,000 1 % to 0,025 %.