[Determination of Al, B, Ba, Ca, Cr, Cu, Fe, Mg, Mn, Ni, Sr, Ti, V and Zn impurities in silicon metal by ICP-AES].
In this paper, an ICP-AES method for determining Al, B, Ba, Ca ets impurities in silicon metal is described. The interference factors in the analysis of impurity elements in silicon metal has been studied. The problems of background interference, organic matter (mannitol) interference, major elements interference are discussed. In the procedure of sample preparation, a proper volume of mannitol solution was added to sample, and this can protect B from volatilization. The feasibility of the proposed method is evaluated by analyzing one national geochemical reference samples (GSR-4), The results are satisfactory.
Zhang
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Guangdong Import and Export, Commodity Inspection Bureau, Shaoguan Branch, 512023 Shaoguan.
Huang
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F
Sun
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X