[Determination of impurities in electrolytic manganese by atomic absorption spectrometry]

The content of K, Na, Ca, Mg, Fe in electrolytic manganese are determined by FAAS, and content of Cu, Cr, Co, Ni determined by GFAAS after sample is dissolved by HCl (aq). The best condition for determination is investigated, including method of dissolving and acidity, and influence of coexist elements and exclusion of these influences. The methods prove to be rapid, accurate and convenient. The recoveries of method are 88.9%-108.7%, the relative standard deviations are 0.6%-6.7%. The results obtained by calibration curve method are in good conformity with the standard addition method and results measured by ICP. The method can be utilized in analysis of impurities in electrolytic manganese.