【摘要】 从控制和减少共存元素干扰以及优化实验条件等方面,对酸溶解-EDTA滴定法测定铅精矿中铅的测定方法做了针对性改进。研究表明,改进后的测定方法,相对易于操作且分析结果可靠。改进方法与国标方法对相同试样的测定结果偏差在允许误差范围内,试样加标回收率在99.65%～100.75%之间。更多还原

【Abstract】 From the aspects of controlling and reducing the interference of coexisting elements and optimizing the experimental conditions,the method for determining the lead in lead concentrate by acid dissolution-EDTA titration was improved. Studies have shown that the improved assay is relatively easy to operate and reliable. The improvement method and the national standard method have the deviation of the measurement result of the same sample within the allowable error range,and the sample recovery rate is between 99.65%～100.75%.更多还原