The Ru[Cl.sub.3] x 3[H.sub.2]O and the ligands 1,1-bis(diphenylphosphino)methane (dppm), quinaldic acid, and kynurenic acid were used as received from Aldrich.
Quinaldic acid (0.103 mmol; 17.8 mg) or kynurenic acid (0.103 mmol; 19.5 mg), respectively, for synthesis of complexes 1 and 2, was solubilized in 10 mL of methanol and deprotonated with triethylamine (0.132 mmol; 0.014 ml) and this solution was added dropwise on the precursor solution.
 Betasitosterol, L-phenylalanine, lysoPCs, glycerol-phosphocholine, lysoPEs, enodeoxycholic acid glycine conjugate, and quinaldic acid
were significantly lower in central tumor tissue group compared with the distant tissue group.
Yamasaki, "Stability constants of picolinic and quinaldic acid chelates of bivalent metals," Journal of Physical Chemistry, vol.
Hardeland, "Comparative studies on kynurenic, xanthurenic and quinaldic acids as scavengers of hydroxyl and ABTS cation radicals," in Studies on Antioxidants and Their Metabolites, R.
The present work is devoted to the study of the polarographic reduction of quinaldic acid to determine the nature of waves, the formal heterogeneous rate constant ([k.sup.0.sub.f,h]) and the other thermodynamic functions in various buffer solutions with the variation of temperature.
The title compound quinaldic acid was obtained from E.
The electrochemical reduction of 1 mM quinaldic acid (2-quinoline carboxylic acid) has been studied in buffer solutions of pH values 1.20, 3.50, 5.29 and 6.50 at various temperatures viz., 303K, 313K, 323K and 333K.