[Determination of gold in thiourea and sulfuric acid solution by AAS].
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.
Tang
Hong-ping
HP
Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China.
Yang
Ming-de
MD
He
Pei-jiong
PJ
D006046:Gold / Q000032:analysis*; D015203:Reproducibility of Results; D012996:Solutions; D013054:Spectrophotometry, Atomic / Q000379:methods; D013464:Sulfuric Acids / Q000737:chemistry*; D013890:Thiourea / Q000737:chemistry*
D012996:Solutions; D013464:Sulfuric Acids; D006046:Gold; D013890:Thiourea; C033158:sulfuric acid