METHOD FOR POTENTIOMETRIC DETERMINATION OF SUBSTANCE

摘要

FIELD: chemistry. ^ SUBSTANCE: in the method for potentiometric determination of a substance using two additions of a standard solution of the substance to be determined to an analysed solution of the said substance and measuring the potential of the analysed solution before and after adding, the volume of the two successive additions is measured in such a way that on each addition step, the potential of the analysed solution increases by a predetermined and equal value. Concentration of the determined substance is calculated using a given formula. ^ EFFECT: simple calculation when processing measurement results and high quality of analysis. ^ 2 cl, 2 tbl