FISCHER,KARL TITRATION - A METHOD FOR DETERMINING THE TRUE WATER-CONTENT OF CEREALS

A variation of the Karl Fischer titration was developed to measure the water content of cereals such as various grains and flours. The prese nted method is based on an elevated working temperature. It can even r each the boiling point of the working medium which contains methanol a s solvent. The influence of different sample preparations is also disc ussed. A standardized procedure could be found to achieve highly repro ducible and statistically safe results. The proposed titration method can be carried out with titrators of different manufacturers. The meth od may serve as a reference technique for these products and, by conse quence, as calibration method for other more rapid methods, which may then be used in the daily laboratory practice or in industrial product ion lines.