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

被引：9

作者：

CHUNG, KH ^{[1
]}

MOON, CH ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM,373-1 KUSONG DONG,YUSUNG KU,TAEJON 305701,SOUTH KOREA

来源：

ENVIRONMENTAL TECHNOLOGY | 1994年 / 15卷 / 08期

关键词：

HUMIC ACID; POLY(METHACRYLIC ACID; (113)CD NHR SPECTRA; BINDING SITES; CD SPECIES;

D O I：

10.1080/09593339409385485

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Poly(methacrylic acid) or humic acids were added in increasing quantities to aqueous CdCl2 solutions (5.25 x 10(-2) M, pH = 6), and the changes in the concentrations of both the free cadmium and chloride ions remaining in the supernatants were measured from the peak intensity and chemical shift data of the Cd-113 NMR spectra. The decrease in the cadmium 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.

引用

页码：795 / 800

页数：6

共 10 条

[1] COMPLEXATION BY NATURAL HETEROGENEOUS COMPOUNDS - SITE OCCUPATION DISTRIBUTION-FUNCTIONS, A NORMALIZED DESCRIPTION OF METAL COMPLEXATION [J].

BUFFLE, J ;

ALTMANN, RS ;

FILELLA, M ;

TESSIER, A .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1990, 54 (06) :1535-1553

[2]

BUFFLE J, 1992, IUPAC ENV ANAL PHYSI, V1, pCH5

[3] CD-113 FOURIER-TRANSFORM NUCLEAR MAGNETIC-RESONANCE SPECTROSCOPY [J].

CARDIN, AD ;

ELLIS, PD ;

ODOM, JD ;

HOWARD, JW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (07) :1672-1679

[4]

DEROME AE, 1987, MODERN NMR TECHNIQUE, pCH7

[5] PREDICTION OF CADMIUM COMPLEXATION IN SOLUTION AND ADSORPTION TO MONTMORILLONITE [J].

HIRSCH, D ;

NIR, S ;

BANIN, A .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1989, 53 (03) :716-721

[6] HUMIC SUBSTANCES FORMED DURING THE COMPOSTING OF ORGANIC-MATTER [J].

INBAR, Y ;

CHEN, Y ;

HADAR, Y .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1990, 54 (05) :1316-1323

[7]

MOLYNEUX P, 1983, WATER SOLUBLE SYNTHE, V1, pCH3

[8]

MOON HC, 1991, B KOR CHEM SOC, V12, P153

[9]

SANDERS JKM, 1988, MODERN NMR SPECTROSC, pCH6

[10]

STEVENSON FJ, 1985, HUMIC SUBSTANCES SOI, pCH2

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