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Calculation of stability constants from potentiometric data by desk computers. A simplified approach

Authors
Journal
Journal of Electroanalytical Chemistry
0022-0728
Publisher
Elsevier
Publication Date
Volume
179
Identifiers
DOI: 10.1016/s0022-0728(84)80278-8

Abstract

Abstract A convenient approach for calculating overall stepwise formation constants from ligand concentration and potentiometric measurements of free metal ion concentration is proposed. A weighting factor is used in order to level all dependent terms of simultaneous equations to a common magnitude, in agreement with the constant error expected in the potentiometric measurements. Programmable calculators can be used in the simplified method. A more complete and flexible program was developed for desk computers for the matrix solution on a least squares basis, free ligand correction, data exclusions and estimation of precision.

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