Statistical adjustment of parameters for potentiometric titration data.
The paper deals with the statistical problem of adjusting parameters to the experimental data from potentiometric titrations. The parameters to be refined are, first, the value of the stability constant of the titration reaction, and, second, the equivalence volume. The paper discusses the selection of the error variable and the need for weighting in the optimization procedure. The case where both parameters are refined at the same time is also considered. Special reference is made to linearized titration curves for the determination of the equivalence volume.
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Department of Chemistry, Abo Akademi, SF-20500 Abo 50, Finland.