Abstract
More than two kinds of the preservatives are used frequently, in the market foodstuffs. In this paper, the separating determination method for the preservatives by use of the column of the strongly basic ion-exchange resin (DOWEX 2X8-Cl- form) was described. As the eluents, the hydrochloric acid mixed with methanol of the various concentrations were used selectively. The results obtained from the experiments are as follows:
1) For seven examples of the mixtures of preservatives, the separating methods of their ingredients were accomplished.
2) The interference of the other substances such as the decomposed products from sugar, vanillin and ethyl vanillin, could be romoved from the preservatives.
