Differentiation of mobile and immobile pesticides on anionic clays by 1H HR MAS NMR spectroscopy.
Adsorbed vs. intercalated MCPA (4-chloro-2-methylphenoxyacetic acid) in highly hydrated clays taken as a soil model were clearly distinguished by 1H HR MAS NMR; adsorbed herbicide gave sharp signals indicating high mobility while intercalated herbicide gave very wide unresolved spectra due to its strong interaction with the solid matrix.
Combourieu
B
B
Laboratoire de Synthèse et Etude des Systèmes à Intérêt Biologique, Université Blaise Pascal, CNRS UMR 6504, France.
Inacio
J
J
Delort
A M
AM
Forano
C
C
D008456:2-Methyl-4-chlorophenoxyacetic Acid / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D010573:Pesticide Residues / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
D010573:Pesticide Residues; D012989:Soil Pollutants; D008456:2-Methyl-4-chlorophenoxyacetic Acid