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| DETERMINATION OF IRON IN NEW MATERIAL TUNGSTEN-COBALT CARBIDE BY AAS |
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| DOI： |
| KeyWord:Tungsten-cobalt carbide Iron AAS determination, |
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| Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: |
| A new material of tungsten-cobalt carbide contains tungsten of about 80%, cobalt of 10 ~ 13% and carbon of 5%. Because of cobalt interference, the photometric method for determination of iron content with orthophenanthroline is not applied to the new material. In this paper, a method of using ACS for direct determination of the iron in the new material dissolved by mixture acid is presented. Tests have shown that this method is rapid and simple for determination of iron content in tungsten-cobalt carbide. |
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