氨水浸取—盐酸介质火焰原子吸收光谱法测定杂铜物料中的银  

Determination of silver in miscellaneous copper materials in hydrochloric acid medium by ammonia leaching-flame atomic absorption spectrometry

作　　者：肖红新[1,2] 

机构地区：[1]广东省工业技术研究院 [2]广州有色金属研究院

出　　处：《黄金》2014年第9期82-84,共3页Gold

基　　金：广东省重大专项研究(2012A090300008)

摘　　要：采用王水溶解样品,氨水浸取银,同时沉淀分离大部分其他金属元素,消除其他元素干扰;在10%的盐酸介质中,在设定的仪器工作条件下,采用火焰原子吸收光谱法测定杂铜物料中的银。该方法简单快速、准确可靠,测定结果相对标准偏差小于1%。The sample is dissolved^in aqua regia and silver is leached by ammonia, most other metallic elements are precipitated at the same time, eliminating the interference. In 10 % hydrochloric acid medium, under the set equipment working conditions, silver content was determined by flame atomic absorption spectrometry. The relatively standard deviation of the determination results is less than 1%.

关 键 词：杂铜物料 银 火焰原子吸收光谱法 

分 类 号：O657.3[理学—分析化学]