Spectrophotometric extractive titrations--V. Theoretical approach to titration of a single cation.
The general equation of the titration curve for spectro-photometric extractive titrations is derived. The graphical location of the end-point is assumed and the significance of the general equation is discussed. Simple formulas for threshold pH and for sensitivity are obtained. An increased selectivity of spectrophotometric extractive titrations in comparison with that of the usual spectrophotometric extractive methods is demonstrated.
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Lachema, N.C., Kaznejov, Pilsen-North, Czechoslovakia.