A new numerical method of finding potentiometric titration end-points by use of rational spline functions.
A new numerical method of determining the position of the inflection point of a potentiometric titration curve is presented. It consists of describing the experimental data (emf, volume data-points) by means of a rational spline function. The co-ordinates of the titration end-point are determined by analysis of the first and second derivatives of the spline function formed. The method also allows analysis of distorted titration curves which cannot be interpreted by Gran's or other computational methods.
Ren
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K
Faculty of Chemistry, A. Mickiewicz University, 60-780 Poznań, Grunwaldzka 6, Poland.
Ren-Kurc
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