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Polarographic Determination of Stability Constants of Cadmium and Lead Complexes in Buffer Solution of 3-Hydroxypropionic Acid and 2-, 3-, and 4-Hydroxybutyric Acids

S. Nushi ; Department of Inorganic Chemistry, Facuity of Technology, 41000 Zagreb
I. Piljac ; Department of Inorganic Chemistry, Facuity of Technology, 41000 Zagreb
B. Grabarić ; Department of Inorganic Chemistry, Facuity of Technology, 41000 Zagreb
I. Filipović ; Department of Inorganic Chemistry, Facuity of Technology, 41000 Zagreb

Sažetak

Stability constants of 3-hydroxypropionate and 2-, 3-, and
4-hydroxybutyrate complexes of cadmium and lead have been
determined by the improved three-electrode polarographic technique.
The ligand solution was delivered discontinuously, directly into
the electrolytic cell. Refined half-wave potentials and diffusion
currents were obtained by simultaneous computer treatment of
graphically determined rough data, utilizing a least-squares program.
The same program was subsequently used to calculate values of
the F 0 (fLl)-function, according to the method by De Ford and
Hume. These values were weighted following a suggestion by
Momoki, Sato and Ogawa. By least-squares fitting of the weighted
polynomials, stability constants and corresponding standard errors
were obtained.

Ključne riječi

Hrčak ID:

197015

URI

https://hrcak.srce.hr/197015

Datum izdavanja:

12.11.1973.

Posjeta: 921 *