Modelling the binding of triazine herbicides to humic substances using capillary electrophoresis

被引：6

作者：

Lucio, Mariana ^{[1
]}

Schmitt-Kopplin, Philippe ^{[1
]}

机构：

[1] GSF Natl Res Ctr Environm & Hlth, Inst Ecol Chem, D-85764 Neuherberg, Germany

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2006年 / 4卷 / 01期

关键词：

humic substances; S-triazine; binding; capillary electrophoresis; SIMCA; PCA; ACE;

D O I：

10.1007/s10311-005-0017-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The binding of four s-triazines herbicides and metabolites, ameline, hydroxyatrazine, atraton and ametryn to 12 structurally different humic substances was studied by affinity capillary electrophoresis (ACE). Binding data were confronted to the structural data of humic acids obtained from spectrometric measurements (UV-Vis, FTIR, NMR), elemental analysis and potentiometric titration. The results obtained with principal component analysis and partial least-square analysis clearly show the importance of carboxylic acidity and aromaticity of the humic ligands in relation to the partial positive charge and relative hydrophobicity of the pesticides.

引用

页码：15 / 21

页数：7

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