To get an optimally dispersed sample, two parameters are of great importance for measurements in an aqueous suspension: the temperature and the pH value.
The pH value is an important parameter for the stability of a suspension. If it shifts during the measurement, fl occulation (coagulation) of particles may occur, which is a frequent cause for non-reproducible measuring results. A low temperature makes the degradation of agglomerates diffi cult and simultaneously increases the risk of air bubbles forming in the measuring circuit. Warmer water, on the other hand, signifi cantly supports the dispersion. In addition, the gas content is reduced signifi cantly and therefore also the risk of bubble formation. Using the ANALYSETTE 22 NeXT you can measure the temperature as well as the pH value continuously during the measurement.