TY - JOUR
T1 - Modelling the binding of triazine herbicides to humic substances using capillary electrophoresis
AU - Lucio, Mariana
AU - Schmitt-Kopplin, Philippe
PY - 2006/4
Y1 - 2006/4
N2 - The binding of 4 s-triazines herbicides and metabolites, ameline, hydroxyatrazine, atraton, and ametryn to 12 structurally different humic substances was studied by affinity capillary electrophoresis. Binding data were confronted to the structural data of humic acids obtained from spectrometric measurements (UV-Vis, FT/IR, 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.
AB - The binding of 4 s-triazines herbicides and metabolites, ameline, hydroxyatrazine, atraton, and ametryn to 12 structurally different humic substances was studied by affinity capillary electrophoresis. Binding data were confronted to the structural data of humic acids obtained from spectrometric measurements (UV-Vis, FT/IR, 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.
KW - ACE
KW - Binding
KW - Capillary electrophoresis
KW - Humic substances
KW - PCA
KW - S-triazine
KW - SIMCA
UR - http://www.scopus.com/inward/record.url?scp=33645073895&partnerID=8YFLogxK
U2 - 10.1007/s10311-005-0017-y
DO - 10.1007/s10311-005-0017-y
M3 - Article
AN - SCOPUS:33645073895
SN - 1610-3653
VL - 4
SP - 15
EP - 21
JO - Environmental Chemistry Letters
JF - Environmental Chemistry Letters
IS - 1
ER -