电解分离基体-原子吸收光谱法测定氧化铜光谱标样中Pb、Ni、Zn、Fe

Atomic Absorption Spectrometric Determination of Lead, Nickel, Iron and Zinc in Coper Oxide reference materials after electrolytic separation of matrix

用电解法分离基体铜,电解液经浓缩后直接火焰原子吸收光谱法测定。方法简便、准确。回收率为98—103％。测定0.000x—0.000x％含量的样品。其变异系数为1.8—6.9％。

Copper matrix is removed by electrolytic method. Then the cocentrated electrolyte is determined directly by FAAS. It is a simple rapid and accurate method with 98-103% redovery and the variation coefficients 1.8—6.9% in the concentration range of 0.000x—0.00x%. It is suitable for analysis of spectral reference materials of copper oxide.