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本文研究了吡咯啶二硫代氨基甲酸铵(APDC)共沉淀痕量铅镉钴镍铁铜的最佳条件;金属-PDC配合物的稳定性及共存元素的干扰等。沉淀溶解于小体积的甲基异丁酮(MIBK)中,采用微量进样技术,将有机相直接喷入空气-乙炔火焰,原子吸收光谱法测定之。该法已成功地应用于荧光级氧化镧和氧化钇中题示元素的测定。
In this paper, the optimum conditions for co-precipitation of trace amounts of lead, cadmium, nickel, iron and copper with ammonium pyrithione dithiocarbamate (APDC), the stability of metal-Pd complex and the interference of coexisting elements were studied. The precipitate was dissolved in a small volume of methyl isobutyl ketone (MIBK). The micro-injection technique was used to inject the organic phase directly into the air-acetylene flame to determine it by atomic absorption spectrometry. The method has been successfully applied to the determination of elemental fluorescence in Lanthanide and Yttrium oxide.