BESTIMMUNG DER GESAMTSÄURE IN WEINEN UND FRUCHTSÄFTEN MITTELS FLIESS-INJEKTIONS-ANALYSE

Abstract

Titrimetric acid determination by Flow-Injection Analysis (FIA) is known since 1977, but up till now it has seldom been used in food analysis. Taking wines and fruit juices as examples, it will be shown that FIA acid titration is a simple but rapid and reliable method to determine the total acid content of beverages generally. Agreement with the reference method is better than + 2%. Up to 30 estimations per hour are possible with each 100 to 150 1 sample volume.