火试金重量法测定金碳基催化剂中金含量

Determination of Gold Content in Gold-based Catalysts by Fire Gold Gravimetry

采用火试金重量法测量含金碳基催化剂中金含量,通过焙烧温度、称样量、物料配比、金银质量比以及分金酸度等确定最优实验条件。在最优实验条件下通过加标实验,标准物质回收率99.0%~100.6%。方法准确度良好,可运用于实际生产分析。

The gold content in gold-containing carbon-based catalyst was measured by fire gold gravimetric method,and the optimal experimental conditions were determined by roasting temperature,sample weight,material ratio,gold/silver mass ratio and gold separation acidity.Under the optimal experimental conditions,the recovery rate of standard substance was 99.0%~100.6%.The method has good accuracy and can be used in actual production analysis.