电感耦合等离子体原子发射光谱法和火焰原子吸收光谱法测定铜锍及含铜烧结物料中银

铜锍及含铜烧结物料用盐酸、硝酸低温分解后，分别采用电感耦合等离子体原子发射光谱（ICP-AES）法和火焰原子吸收光谱（FAAS）法测定银含量。针对该类物料的特点，对溶样条件、共存元素及基体对银测定的影响进行了试验，同时对方法的准确度、精密度、检出限作了相应的讨论。实验结果表明：采用两种方法对进口铜锍及含铜烧结物实际样品中银含量的测定，其结果无明显差异，两种方法都具有较高的准确度和精密度，ICP-AES法和FAAS法的加标回收率分别为94%～101%和96%～108%，测定结果的相对标准偏差均小于3.4%。

Determination of silver in copper matte and copper-bearing sintering materials by inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry

The copper matte and copper-bearing sintering materials were decomposed by hydrochloric acid and nitric acid at low temperature.Then,the content of silver was determined by inductively coupled plasma atomic emission spectrometry(ICP-AES) and flame atomic absorption spectrometry(FAAS).Based on the characteristics of these materials,the effect of sample dissolution conditions,coexisting elements and matrix on determination of silver was investigated.Meanwhile,the accuracy,precision and detection limit of meth...