A simple method is described for the simultaneous determination of residues of 2 carbamate herbicides (phenmedipham and desmedipham) and related metabolites (m-aminophenol, aniline, and m-toluidine) in soil. The analytes are extracted from spiked soils with methanol. The solvent/soil suspension is centrifuged, and the supernatant is directly injected, without any further cleanup, into a reversed-phase liquid chromatography/mass spectrometry apparatus equipped with a TurbolonSpray interface. The method was tested on 5 soils having different physicochemical properties. Recoveries from the soil types, spiked over the range of 50-200 ppb, were essentially quantitative for each analyte. The detection limits of the method are less than or equal to 25 ng/g.
LIQUID CHROMATOGRAPHIC/MASS SPECTROMETRIC DETERMINATION OF DESMEDIPHAN AND PHENMEDIPHAN AND THEIR METABOLITES IN SOIL / Perret, Daniela; Gentili, Alessandra; Marchese, Stefano; Marino, Aldo; F., Bruno. - In: JOURNAL OF AOAC INTERNATIONAL. - ISSN 1060-3271. - STAMPA. - 84:5(2001), pp. 1407-1412.
LIQUID CHROMATOGRAPHIC/MASS SPECTROMETRIC DETERMINATION OF DESMEDIPHAN AND PHENMEDIPHAN AND THEIR METABOLITES IN SOIL
PERRET, Daniela;GENTILI, Alessandra;MARCHESE, Stefano;MARINO, Aldo;
2001
Abstract
A simple method is described for the simultaneous determination of residues of 2 carbamate herbicides (phenmedipham and desmedipham) and related metabolites (m-aminophenol, aniline, and m-toluidine) in soil. The analytes are extracted from spiked soils with methanol. The solvent/soil suspension is centrifuged, and the supernatant is directly injected, without any further cleanup, into a reversed-phase liquid chromatography/mass spectrometry apparatus equipped with a TurbolonSpray interface. The method was tested on 5 soils having different physicochemical properties. Recoveries from the soil types, spiked over the range of 50-200 ppb, were essentially quantitative for each analyte. The detection limits of the method are less than or equal to 25 ng/g.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
