Synthesis of Quinaldinic Acid Amide Derivative of Styrene-Divinylbenzene Copolymer and its Application in Preconcentration of Mercury (II)
作者:
J. Das,
N. Das,
期刊:
Analytical Letters
(Taylor Available online 1988)
卷期:
Volume 21,
issue 9
页码: 1735-1747
ISSN:0003-2719
年代: 1988
DOI:10.1080/00032718808066524
出版商: Taylor & Francis Group
关键词: Quinaldinic acid amide;styrene-divinyl benzene;mercury (II);selective sorption;preconcentration
数据来源: Taylor
摘要:
A new chelating resin has been synthesized by introducing a quinaldinic acid amide group into styrenedivinyl benzene (8%) copolymer beads. The resin is stable in fairly strong acids or alkali and has been characterized by elemental analysis for nitrogen and from i.r. spectra. The water regain value is 0.37g/g. The sorption patterns of Na(I), K(I), Ca(II), Mg(II), Pb(II), Cu(II), Ni(II), Zn(II), Cd(II), Hg(II) and Fe(III) on the chelating resin have been studied as a function of pH. The resin selectively sorbs Hg(II) ever a wide pH-range of 2.5–7.6 with high efficiency. The maximum exchange capacity for Hg(II) is 1.98 mmols g−1at pH 5.5. Over 99% of Hg(II) sorbed has been recovered by using 10% thiourea in 1MHClO4both by batch and column operations. The has been utilized in the preconcentration and recovery of Hg(II) from industrial and laboratory waste water.
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