铜及铜合金国家标准分析方法不适用加稀土和银的铬青铜新产品中银量的测定。本文试验了8种溶解方法,从中选出硝酸、盐酸、高氯酸混合试剂溶解试样,然后用火焰原子吸收光谱法测定银量。实验表明,溶样方法可靠,方法快速、简捷,精密度好。适合铬青铜中银量的测定。1实验部分1.1仪 National standard analysis methods for copper and copper alloys Not applicable. Determination of the amount of silver in new products of chromium bronze with rare earth and silver. In this paper, eight kinds of dissolution methods were tested, nitric acid, hydrochloric acid, perchloric acid mixed reagent was selected to dissolve the sample, and then the amount of silver was determined by flame atomic absorption spectrometry. Experiments show that the method of sample dissolution is reliable, the method is rapid, simple and precise. Suitable for chrome bronze determination of the amount of silver. 1 experimental part 1.1 meter