The mineral-graphite electrode and its application to the analysis of vanadium oxides.
Vanadium in different oxidation states in a sample of mixed oxides can be determined by a voltammetric method without the need for decomposition of the sample. The oxide is mixed into a paste with graphite and 1-bromonaphthalene, and packed into the electrode holder. Current maxima on the polarization curves give a measure of the amount of vanadium present in each oxidation state.
Songina
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Kazakh State University, Alma Ata, USSR.