氯化金中金量测定方法的研究

氯化金中金量的测定通常采用还原沉淀法,一般使用草酸作为还原剂,但在草酸还原金的过程中存在着还原不完全、试液外溢等问题。在借鉴国内同行的分析工作经验基础上,提出了以亚硫酸钠替代草酸还原测定氯化金中的金量。该方法与草酸还原沉淀法相比,具有准确、易操作的优点,测定结果令人满意。

Study on determination method of gold content in gold chloride

Reduction-precipitation method with oxalic acid is usually used to determine gold content in gold chloride,but oxalic acid has the defects like incomplete reduction and overflow of test solutions.Referring to the working experience of domestic colleagues,a sodium sulfite replacement of oxalic acid was put forward to determine the gold content.The method was proved to be more accurate and accessible,achieving satisfactory results.