Potentiometric, Theoretical, and Thermodynamic Studies on Equilibrium Constants of Aurintricarboxylic Acid and Determination of Stability Constants of Its Complexes with Cu2+, Ni2+, Zn2+, Co2+, Hg2+, and Pb2+Metal Ions in Aqueous Solution

2011 ◽  
Vol 56 (10) ◽  
pp. 3866-3872 ◽  
Author(s):  
Hasan Atabey ◽  
Hayati Sari
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Stability Constants ◽  
Equilibrium Constants ◽  
Thermodynamic Studies ◽  
Aurintricarboxylic Acid

scholarly journals DITHIZONE MODIFIED SILVER ELECTRODE FOR THE DETERMINATION OF METAL IONS IN AQUEOUS SOLUTION

2016 ◽  
Vol 20 (1) ◽  
pp. 197-204 ◽  
Author(s):  
Mohamad Aiman Firdaus Othman ◽  
Azrilawani Ahmad ◽  
Hafiza Mohamed Zuki
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Silver Electrode

scholarly journals Copper(II)-complexation by non enzymatically glycated peptides

2004 ◽  
Vol 22 (SI - Chem. Reactions in Foods V) ◽  
pp. S106-S108
Author(s):  
S. T Seifert ◽  
R. Krause ◽  
K. Gloe ◽  
T. Henle
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Stability Constants ◽  
Maillard Reaction ◽  
Metal Binding ◽  
Maillard Reaction Products ◽  
Reaction Products ◽  
Nonenzymatic Glycation ◽  
The Stability

The purpose of our work was to examine the metal binding abilities of selected peptide bound Maillard reaction products (MRPs). The N<sup>α</sup>-hippuryl-protected MRPs N<sup>ε</sup>-fructoselysine and N<sup>ε</sup>-carboxymethyllysine were synthesised and measurement of stability constants for complexes formed with the physiologically important metal ions copper(II) and zinc(II) was carried out in aqueous solution (T = 298.1 K; I = 0.1M KNO<sub>3</sub>) using pH-potentiometry. The stability constants of N<sup>ε</sup>-fructoselysine and N<sup>ε</sup>-carboxymethyllysine with Cu(II) proved that new coordination centres are formed by the nonenzymatic glycation of proteins. With zinc(II) no complexation was observed. Physiological consequences are discussed, but further studies are necessary in order to clarify the effects of this phenomenon.

Simultaneous determination of stability constants of humate complexes with various metal ions using multitracer technique

1997 ◽  
Vol 198 (1) ◽  
pp. 61-71 ◽  
Author(s):  
Yoshio Takahashi ◽  
Yoshitaka Minai ◽  
Shizuko Ambe ◽  
Yoshihiro Makide ◽  
Fumitoshi Ambe ◽  
...  
Keyword(s):  
Metal Ions ◽  
Simultaneous Determination ◽  
Stability Constants
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