Investigations on the conditional kinetic and thermodynamic stability of aquatic humic substance–metal complexes by means of EDTA exchange, ultrafiltration and atomic spectrometry

Talanta ◽  
2001 ◽  
Vol 55 (3) ◽  
pp. 587-593 ◽  
Author(s):  
Johan Van den Bergh ◽  
Brit Jakubowski ◽  
Peter Burba
Keyword(s):  
Metal Complexes ◽  
Humic Substance ◽  
Thermodynamic Stability ◽  
Atomic Spectrometry ◽  
Aquatic Humic Substance

Metal Complexes of an Oxatriaza Macrocycle Containing Pyridine: Thermodynamic Stability and Structural Studies

2001 ◽  
Vol 13 (2) ◽  
pp. 333-347 ◽  
Author(s):  
Judite Costa ◽  
Rita Delgado ◽  
Maria Teresa Duarte ◽  
Vítor Félix
Keyword(s):  
Metal Complexes ◽  
Thermodynamic Stability ◽  
Structural Studies

scholarly journals Spectrophotometric and pH-Metric Studies of Ce(III), Dy(III), Gd(III),Yb(III) and Pr(III) Metal Complexes with Rifampicin

2011 ◽  
Vol 8 (2) ◽  
pp. 517-522
Author(s):  
A. N. Sonar ◽  
N. S. Pawar
Keyword(s):  
Ionic Strength ◽  
Stability Constant ◽  
Metal Complexes ◽  
Stability Constants ◽  
Thermodynamic Stability ◽  
Individual Parameter ◽  
Job's Method ◽  
Metal Ligand ◽  
Formation Of Complexes

The metal-ligand and proton-ligand stability constant of Ce(III), Dy(III), Gd(III),Yb(III) and Pr(III) metals with substituted heterocyclic drug (Rifampicin) were determined at various ionic strength by pH metric titration. NaClO4was used to maintain ionic strength of solution. The results obtained were extrapolated to the zero ionic strength using an equation with one individual parameter. The thermodynamic stability constant of the complexes were also calculated. The formation of complexes has been studied by Job’s method. The results obtained were of stability constants by pH metric method is confirmed by Job’s method.

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