Determination of Ar、Sb、Bi Content in Ferrotungsten by the Method of Inductively Coupled Plasma Emission Spectrometry

Determination of Ar、Sb、Bi Content in Ferrotungsten by the Method of Inductively Coupled Plasma Emission Spectrometry

The sample was dissolved with oxalic acid and hydrogen peroxide and processed with mixed acid to remove the tungsten. Determination of arsenic、antimony、bismuth in ferrotungsten by the method of ICP-AES. The results indicated that matrix effect of the tungsten for measuring element was not obvious after tungsten removal. This method was applied to the determination of synthetic ferrotungsten sample,and the results agreed well with the certified values,with recovery rate of 96.5%~102.0%and relative standard deviation of 1.2%~4.6%.



 

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