Immobilized N-Methyl-D-glucamine as an Arsenate-Selective Resin

Laurent Dambies; Richard Salinaro; Spiro D.Alexandratos

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Immobilized N-Methyl-D-glucamine as an Arsenate-Selective Resin

机译：固定化N-甲基-D-氨基葡萄糖作为砷酸盐选择性树脂

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Immobilization of N-methyl-D-glucamine(NMDG)on poly-(vinylbenzyl chloride)beads yields an effective and highly selective sorbent for arsenate ions.Three important parameters in the resin's high As(V)affinity and selectivity are the structure of the ligand,its ionic form,and the crosslink density of the polymer.The NMDG resin cross-linked with 2 wt divinylbenzene is far more selective than commercially available analogues,especially when sulfate and chloride ions are present in solution at high concentrations.Selectivity studies at neutral pH indicate that the protonated tertiary amine moiety is an important component of the complexation mechanism.The NMDG resin also has a high affinity for the un-ionized As(V)species at pH 1.

机译：将N-甲基-D-氨基葡萄糖（NMDG）固定在聚-（氯乙烯基苄）珠上可产生一种有效且高选择性的砷酸根离子吸附剂。树脂的高As（V）亲和力和选择性有三个重要参数，即配体的结构、离子形式和聚合物的交联密度。与2重量%的二乙烯基苯交联的NMDG树脂比市售的类似物更具选择性，特别是当硫酸根离子和氯离子以高浓度存在于溶液中时。中性pH条件下的选择性研究表明，质子化的叔胺部分是络合机理的重要组成部分。NMDG树脂在pH 1时对未电离的As（V）物种也具有高亲和力。

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《Environmental Science & Technology: ES&T》 |2004年第22期|6139-6146|共8页
作者
Laurent Dambies; Richard Salinaro; Spiro D.Alexandratos;
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作者单位

Department of Chemistry,Hunter College of the City University of New York,695 Park Avenue,New York,New York 10O_21,and Pall Corporation,25 Harbor Park Drive,Port Washington,New York 11050;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境化学;
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Immobilized N-Methyl-D-glucamine as an Arsenate-Selective Resin

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