Vanadatometry in Organic Analysis
It was shown that the use of pentavalent vanadium salts in liquid-phase oxidation significantly extends the field of their application in organic analysis. Oxidation at elevated temperatures (200–230°C) has become possible under conditions not studied previously and favorable from an analytical viewpoint. Any organic compounds were decomposed to the final oxidation products (CO2 , H2O, and, when a molecule contains the amine nitrogen, NH3). The quantity of the analyte can be easily determined from the amount of vanadate consumed for the oxidation. Using numerous compounds from different classes as examples, we have demonstrated that wet combustion at elevated temperatures holds much promise. The method is easy to perform; it is highly sensitive and can be assigned to micro- or semimicroanalytical methods, because analyte samples are varied in the range of several milligrams.