caa a22 4500 469039019 CHVBK 20180323132804.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF01045296 doi (NATIONALLICENCE)springer-10.1007/BF01045296 Potentiometric studies on the complexes of tetracycline ( TC ) and oxytetracyclin ( OTC ) with some metal ions [Elektronische Daten] [Mahmoud Ghandour, H. Azab, Ahmed Hassan, A. Ali] Potentiometrische Untersuchungen der Komplexe von Tetracyclin ( TC ) and Oxytetracyclin ( OTC ) mit einigen Metall-Ionen Summary: The interaction of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Zn(II), Cd(II), Hg(II), Pb(II), Al(III), and UO2(II) ions with tetracycline (TC) were studied by potentiometricpH titrations. The formation constants of the different binary complexes formed in such systems have been determined at 25±0.1°C and μ=0.1 moll−1 (NaNO3). PotentiometricpH equilibrium measurements have been made under the same conditions for the interaction of oxytetracycline (OTC) and Cu(II), Cd(II), Pb(II), and UO2(II). The formation of (1:1) binary complexes are inferred from the potentiometricpH tritration curves. The protonation constants ofTC andOTC were also determined under the same conditions and refined (ESAB2M computer program). The transition metal stability constants are consistent with the Irving-Williams series. Springer-Verlag, 1992 Complexes nationallicence Tetracycline nationallicence Oxytetracycline nationallicence Potentiometric studies nationallicence Ghandour Mahmoud Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut Azab H. Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut Hassan Ahmed Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut Ali A. Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/1-2(1992-01-01), 51-58 0026-9247 123:1-2<51 1992 123 706 https://doi.org/10.1007/BF01045296 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01045296 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ghandour Mahmoud Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut NATIONALLICENCE 700 1- Azab H. Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut NATIONALLICENCE 700 1- Hassan Ahmed Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut NATIONALLICENCE 700 1- Ali A. Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/1-2(1992-01-01), 51-58 0026-9247 123:1-2<51 1992 123 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer