FAAS Method for Determination of Impurities in High Purity Lithium Carbonate

FAAS method was applied to the determination of metal impurities (in cluding Zn,Na,Pb,K,Fe,Ca and Mg) in high purity lithium carbonate.As shown by experimental results,values of RSD′s (n=9) obtained in the determination of the above mentioned impurity-elements,were in the range of 1.9%-4.4%.Working curves for these elements had fine linearity with correlation coefficient ranged from 0.994 3 to 0.999 8.Test for recovery was performed by standard addition method,giving results in the range of 98.3%-101.0%.