Possibilities of selective thermometric determinations in multi-component systems

Abstract

The methods elaborated for the thermometric determination of the component to be analyzed in samples containing several interfering components are described. The following possibilities have so far been found for performing the determinations:The application of selective or partially selective reactions. Increasing the selectivity of the reactions by masking the interfering components. Increasing the selectivity of the reactions by utilizing the differences in behaviour of the various components towards the reagent, as for instance, differences in solubility, in stability constants, in the variation of the stability constants with pH, in the reaction rate. The use of indirect methods. Finally the correction of the interfering effect of certain components by calculation in the case of binary and multicomponent systems.The direct-reading thermometric method is a relative method, since the results are evaluated by means of a calibration graph established with model solutions