Y. Nagaosa et T. Ishida, REVERSED-PHASE CHROMATOGRAPHIC BEHAVIOR OF METAL-COMPLEXES WITH 8-HYDROXYQUINOLINE AND ITS DERIVATIVES, Journal of liquid chromatography & related technologies, 21(5), 1998, pp. 693-703
Citations number
13
Categorie Soggetti
Chemistry Analytical","Biochemical Research Methods
Chromatographic behavior of metal complexes with 8-hydroxyquinoline, 5
-chloro-8-hydroxyquinoline, and 5,7-chloro-8-hydroxyquinoline in the r
eversed-phase system has been studied using a variety of organic modif
iers. In the acetone modifier system. the capacity factors (k') of the
corresponding vanadium(V), nickel(II), and cobalt(III) complexes incr
eased with increasing number of substituted chlorine atoms in the liga
nds. With acetonitrile-water as the mobile phase, the k' values of the
metal 8-hydroxyquinoline complexes decreased with increasing contents
of the modifier, depending on the strength of polarity parameters. Th
e k' values, experimentally determined, can be related to the polarity
parameters of organic modifiers for tervalent metal ions, but not for
monovalent and divalent ions.