Abstract
Iodine titration method, indophenole titration method, indophenole-xylene extraction method and 2-nitro-4-methoxy-aniline method were compared each other to find out which is most suitable for determining vitamin C in preparations containing minerals. Both the iodine titration method and the indophenole-xylene extraction method were the best, but the latter may be preferable when organic reductive stabilizers are present in preparations.
