A multi-residue method for the simultaneous extraction from drinking water using solid-phase extraction on LiChrolut EN [poly(styrene-divinylbenzene), PSDVB] and determination of nine N-methylcarbamate pesticides (NMCs) (aldicarb, its metabolites i.e. aldicarb sulfone and aldicarb sulfoxide and carbaryl, carbofuran, dioxacarb, ethiofencarb, methomyland propoxur) using reversed-phase liquid chromatography was studied. A 1000-fold pre concentration was achieved and the method was used for determination of the nine pesticides in water, with limits of detection in the range 3–15 ng L−1. For all compounds the recoveries determined at the 0.1 and 1 μg L−1 level generally ranged from 85 to 104% with relative standard deviations (RSD) of 1.4–8.8%.
Liquid chromatographic determination of nine N-methylcarbamates in drinking water / Morrica, Patrizia; Fidente, Paola; Seccia, Serenella. - In: BIOMEDICAL CHROMATOGRAPHY. - ISSN 0269-3879. - ELETTRONICO. - 19:(2005), pp. 107-110. [10.1002/bmc.426]
Liquid chromatographic determination of nine N-methylcarbamates in drinking water.
MORRICA, PATRIZIA;FIDENTE, PAOLA;SECCIA, SERENELLA
2005
Abstract
A multi-residue method for the simultaneous extraction from drinking water using solid-phase extraction on LiChrolut EN [poly(styrene-divinylbenzene), PSDVB] and determination of nine N-methylcarbamate pesticides (NMCs) (aldicarb, its metabolites i.e. aldicarb sulfone and aldicarb sulfoxide and carbaryl, carbofuran, dioxacarb, ethiofencarb, methomyland propoxur) using reversed-phase liquid chromatography was studied. A 1000-fold pre concentration was achieved and the method was used for determination of the nine pesticides in water, with limits of detection in the range 3–15 ng L−1. For all compounds the recoveries determined at the 0.1 and 1 μg L−1 level generally ranged from 85 to 104% with relative standard deviations (RSD) of 1.4–8.8%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
