TY - JOUR
T1 - Ion-interaction chromatographic studies on metal ions complexed with Plasmocorinth B dye
AU - Sarzanini, C.
AU - Sacchero, G.
AU - ACETO, Maurizio
AU - Abollino, O.
AU - Mentasti, E.
PY - 1993
Y1 - 1993
N2 - The ion-interaction chromatographic behaviour of Plasmocorinth B (a disulphonated azo dye) and of its complexes formed with metal ions in oxidation states + 2 and + 3 (Cu2+, Ni2+, Al3+, Co3+, Fe3+, Ga3+) was investigated. The effect of cationic ion-pairing agents (tetramethyl-, benzyltrimethyl- and tetrabutylammonium) was also evaluated in the presence of alkali metal ions competitors (Li+ and Na+). The effects of organic modifier and of pH were also considered. The remarkably different behaviour of the ligand and the complexes suggests the formation of M(II)L- and M(III)L2(2-). The stoichiometry of complexes was confirmed by applying the electrostatic theory derived from Gouy-Chapman and a modified Langmuir adsorption isotherm to the experimental data.
AB - The ion-interaction chromatographic behaviour of Plasmocorinth B (a disulphonated azo dye) and of its complexes formed with metal ions in oxidation states + 2 and + 3 (Cu2+, Ni2+, Al3+, Co3+, Fe3+, Ga3+) was investigated. The effect of cationic ion-pairing agents (tetramethyl-, benzyltrimethyl- and tetrabutylammonium) was also evaluated in the presence of alkali metal ions competitors (Li+ and Na+). The effects of organic modifier and of pH were also considered. The remarkably different behaviour of the ligand and the complexes suggests the formation of M(II)L- and M(III)L2(2-). The stoichiometry of complexes was confirmed by applying the electrostatic theory derived from Gouy-Chapman and a modified Langmuir adsorption isotherm to the experimental data.
UR - https://iris.uniupo.it/handle/11579/48163
U2 - 10.1016/0021-9673(93)80180-G
DO - 10.1016/0021-9673(93)80180-G
M3 - Article
SN - 0021-9673
VL - 640
SP - 179
EP - 185
JO - Journal of Chromatography A
JF - Journal of Chromatography A
ER -