Abstract
A method is proposed for the simultaneous determination of the constituents of a redox couple using data of potentiometric titration. It is based on the correlation and regression analysis of the modified Gran function. The method was validated using a model titration Fe(II)/Fe(III)-K2Cr2O7 system. For comparable starting concentrations of oxidized and reduced iron species, the determination error does not exceed 0.6%; RSD for Fe(II) and Fe(III) are 0.1-0.2% and 1.5%, respectively.
Original language | English |
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Pages (from-to) | 1026-1029 |
Number of pages | 4 |
Journal | Journal of Analytical Chemistry |
Volume | 52 |
Issue number | 11 |
Publication status | Published - Nov 1997 |
ASJC Scopus subject areas
- Analytical Chemistry