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本法基于钯在碱性溶液中与1,2-环已烷二酮二肟形成黄色络合物,在滴汞电极上产生吸附催化波。催化体系为0.28M氢氧化钠-0.4%抗坏血酸-0.004M1,2-环已烷二酮二肟-0.5%吡啶溶液。峰电位在-1.12伏左右(对饱和甘汞电极)。可检出0.005微克/毫升的钯。在10毫升溶液中钯的波高与其量之间,于0.05～100微克范围内呈线性关系。本法比文献报导的方法,分析流程短,灵敏度更高,而且共存元素镍的允许量显著增大。可以检测出一般矿样中0.005克/吨以上的钯。
This method is based on palladium in alkaline solution with 1,2-cyclohexanedione dioxime yellow complex formed in the mercury droplet adsorption catalytic wave. The catalytic system is 0.28M sodium hydroxide -0.4% ascorbic acid -0.004M1, 2-cyclohexanedione dioxime -0.5% pyridine solution. The peak potential is around -1.12 volts (for saturated calomel electrodes). 0.005 micrograms per milliliter of palladium can be detected. The linear relationship between the wave height of palladium and its amount in 10 ml of solution is in the range of 0.05 to 100 μg. This method reported in the literature than the literature, the analysis process is short, higher sensitivity, and the coexistence of elements of nickel increased significantly. It can detect more than 0.005g / t palladium in general ore samples.