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[Determination of gold in thiourea and sulfuric acid solution by AAS]
Hong-ping Tang1, Ming-de Yang, Pei-jiong He
1Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 10, 2003
Abstract:
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.