微波等离子体原子吸收光谱法测定铜的研究

A Study on Determination of Copper by Microwave Induced Plasma Atomic Absorption Spectrometry(MIP-AAS)

等离子体作为原子化器在原子光谱法中已经获得了广泛的应用.等离子体原子吸收光谱法目前多限于用ICP作为原子化器.1988年本室首次采用常压氩MIP作为原子化器,利用电热进样的方式引入样品,成功地测定了Cu、Ag和Pb.特征浓度分别为0.04(Ag)、0.

The determination of copper by MIP-AAS was studied systematically.The sample solution was introduced from an ultrasonic nebulizer and the solvent was removed by both a condenser and a concentrated H2SO4 desiccator.The experimental parameters which affect the determination of copper were examined in detail.The characteristic concentration for copper was shown to be 0.008μg/mL,and a good accuracy was also achieved.