Interaction of the herbicide glyphosate with copper in humic complexes

被引：29
|
作者：
Undabeytia, T [1 ]
Cheshire, MV [1 ]
McPhail, D [1 ]
机构：
[1] MACAULAY LAND USE RES INST,ABERDEEN AB9 2QJ,SCOTLAND
来源：
CHEMOSPHERE | 1996年 / 32卷 / 07期
关键词：
D O I：
10.1016/0045-6535(96)00036-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Glyphosate is a herbicide which is considered to be inactived in soil by bonding to clays and organic matter, possibly through metal bridges. In this paper it has been shown that copper in inner-sphere complexes with humic Substances is complexed by the herbicide. After hydrolysis of the humic acid fraction with water followed dy 6M HCl, the glyphosate was unable to react with copper in the humic-copper complex to form a glyphosate complex probably because the copper is more strongly bound on sites previously occupied by iron. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码：1245 / 1250
页数：6
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