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Rapid determinations of complexing stability constants by gradient flow-injection titration

✍ Scribed by A.C.Lopes da Conceição; M.L.S.Simões Gonçalves; M.M.Correia dos Santos

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
464 KB
Volume
302
Category
Article
ISSN
0003-2670

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✦ Synopsis

The use of rapid gradient flow-injection titration for the determination of equilibrium constants in solution, previously used in pK measurements of monobasic and multibasic weak acids is extended to the more demanding case of metal complexation.

Formation constants for the complexes ML and ML, of Cd*+ with glycine have been determined by that technique using potentiometric detection with a glass electrode. Under optimum conditions formation constants in good agreement with batch and literature values are obtained in several minutes.

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