Determination of Potassium in Wines by Ion-Meter

Chemical Studies on Coloring and Flavoring Substances in Japanese Grapes and Wines Part XXIII

Abstract

The determination of potassium in two red wines and two white wines was carried out by using an ion-meter. The results were compared with those obtained by an atomic absorption spectrophotometer. The wines were diluted with distilled water to give the concentration of less than 2% of alcohol, the higher concentration of which interfered with the determination. The potassium contents obtained by an ion-meter were very similar to those by an atomic absorption spectrophotometer. The results showed that the method by an ion-meter provided simple and reliable determination of potassium in wines.