Determination of Non-Volatile Acid in Vinegar by Potentiometric Titration with Sulfur Dioxide Residue Analyzer
In order to simplify the determination method of non-volatile acid content in GB/T 18187-2000,the sulfur dioxide residue tester-potentiometric titration method was used to determine the content of non-volatile acid in vinegar.The results show that the relative deviations of the methods are less than 1%,and the recoveries range from 93.10%to 96.30%.The method has high precision,simple operation and is suitable for batch distillation and determination.
万方数据
维普
