原子吸收光谱法测定硫酸硫脲溶液中的金  

Determination of Gold in Thiourea and Sulfuric Acid Solution by AAS

作　　者：唐红萍[1] 杨明德[1] 何培炯[1] 

机构地区：[1]清华大学核能技术设计研究院,北京102201

出　　处：《光谱学与光谱分析》2003年第2期371-373,共3页Spectroscopy and Spectral Analysis

基　　金：清华大学实验室开放基金资助项目

摘　　要：以稀王水金溶液作为标准溶液,原子吸收光谱法可以直接测定硫酸流脲溶液里的金。线性范围0.2×10~6～12×10^(-6),相对标准偏差(RSD)<5％。硫脲使金的吸光度减少,硫酸使金的吸光度增加,经过空白曲线修正后可用作实际样品的分析,简化分析步骤。The concentrations of gold in thiourea and sulfuric acid solutions using gold standard solutions in diluent royal water were determined by AAS. The linear range was 0.2-12 x 10(-6), and RSD<5 %. This method simplifies the analysis of gold in thiourea and sulfuric acid solution. Thiourea declines the absorbency of gold while sulfuric acid plays a contrary role. The determined value were satisfactor after being modified by the blank curve.

关 键 词：原子吸收光谱法 测定 硫酸硫脲溶液 金 分析 

分 类 号：O614.123[理学—无机化学] O657.31[理学—化学]