Kinetic-catalytic determination of vanadium in non-aqueous solvents |
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Authors: | M Otto G Schöbel G Werner |
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Institution: | Department of Chemistry, Analytical Centre, Karl-Marx University, Liebigstr. 18, 7010 Leipzig G.D.R. |
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Abstract: | Determination of trace vanadium in organic solvents is studied by use of the oxidation of o-dianisdine with t-butyl hydroperoxide. The sensitivity of the catalyzed reaction is optimized by application of a modified simplex method. Under optimum conditions the detection limit is 0.7 ng V ml?1 in acetonitrile and the relative standard deviation is 0.048. The effect of other metal ions and of co-solvents is discussed. The method is used for trace determinations of vanadium in organic solvents of high purity. |
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