SELECTIVE BINDING OF CD2-NMR SPECTROSCOPY( BY NATURAL AND SYNTHETIC ORGANIC MACROMOLECULES INVESTIGATED BY (113)CD)

Authors
CHUNG KH MOON CH
Citation
Kh. Chung et Ch. Moon, SELECTIVE BINDING OF CD2-NMR SPECTROSCOPY( BY NATURAL AND SYNTHETIC ORGANIC MACROMOLECULES INVESTIGATED BY (113)CD), Environmental technology, 15(8), 1994, pp. 795-800
Citations number
10
Categorie Soggetti
Environmental Sciences
Journal title
Environmental technology → ACNP
ISSN journal
09593330
Volume
15
Issue
8
Year of publication
1994
Pages
795 - 800
Database
ISI
SICI code
0959-3330(1994)15:8<795:SBOCSB>2.0.ZU;2-W
Abstract
Poly(methacrylic acid) or humic acids were added in increasing quantit ies to aqueous CdCl2 solutions (5.25 x 10(-2) M, pH = 6), and the chan ges in the concentrations of both the free cadmium and chloride ions r emaining in the supernatants were measured from the peak intensity and chemical shift data of the Cd-113 NMR spectra. The decrease in the ca dmium concentration was not accompanied by any changes in the chloride concentration, suggesting that only the Cd2+ ion is selectively bound by the synthetic and naturally occurring organic macromolecules.