火焰原子吸收光谱法测定高含量铜、铁冶炼中间物料中的银  

Determination of silver in intermediate materials with high content of copper and iron by flame atomic absorption spectrometry

作　　者：郭晶[1,2] 胡军凯 吴一微[1] 

机构地区：[1]湖北师范学院化学化工学院,湖北黄石435002 [2]大冶有色设计研究院有限公司,湖北黄石435005

出　　处：《湖北师范学院学报（自然科学版）》2013年第4期88-92,共5页Journal of Hubei Normal University(Natural Science)

摘　　要：建立了测定高含量铜、铁冶炼中间物料中银的方法，考察了物料的溶解处理方法以及仪器测定过程中的干扰因素的影响。在15％盐酸介质中，用原子吸收光谱仪于波长328．1nm处测定银，方法的回收率和相对标准偏差分别在93．55％～109．3％和1．3％～2．7％之间。方法具有简单、快捷和准确的特点，适用于冶炼工业含银量在20～500g/t范围内的高含量铜、铁物料样品的分析。A method has been established for determination of silver in the intermediate materials with high content of copper and iron.Factors of intermediate materials pretreatment and interferences during instrument measurement have been investiga -ted in detail.At 15%hydrochloric acid medium and a wavelengths of 328.1 nm, silver in intermediate materials was deter-mined by flame atomic absorption spectrometer with recovery and precision between 93.55%~109.3%and 1.3%~2.7%, respectively .The established method has the characteristics of simple , fast and accurate and suitable for determination of 20~500 g/t silver in intermediate materials with high content of copper and iron .

关 键 词：银 高含量铜 铁冶炼中间物料 火焰原子吸收光谱 

分 类 号：O652.61[理学—分析化学]