原子吸收光谱法连续测定金属硅中铜、锰、镍

Determination of copper,manganese and nickel in silicon metal by atomic absorption spectrometry

采用原子吸收光谱技术,测定金属硅中的杂质铜、锰、镍,研究了干扰及其消除方法。铜、锰、镍检出限分别为0.009,0.008和0.033mg/L,相对标准偏差小于1.5%。加标回收率95.1%～104.1%。方法简便、快速。

The flame atomic absorption spectrometry was applied for the determination of copper,manganese and nickel in silicon,and the interferences of matrix and its eliminating method were studied.The detection limits of copper,manganese and nickel are 0.009,0.008 and 0.033mg/L respectively,The relative standard deviation is less than 1.5%,The recovery of standard addition is 95.1%-104.1%.The proposed method is simple and rapid.