Titre :

A new, simple, efficient and robust multi-residue method based on pressurised-liquid extraction of agricultural soils to analyze pesticides by liquid chromatography coupled with a high resolution quadrupole time-of-flight mass spectrometer

Auteur(s) :

Caria, Giovanni [Auteur]
Laboratoire d'Analyses des Sols [LAS]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Proix, Nicolas [Auteur]
Laboratoire d'Analyses des Sols [LAS]
Mougin, Christian [Auteur]
Ecologie fonctionnelle et écotoxicologie des agroécosystèmes [ECOSYS]
Université Paris-Saclay
Ouddane, Baghdad [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Net-David-Buytaert, Sopheak [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Titre de la revue :

International Journal of Environmental Analytical Chemistry

Nom court de la revue :

Int. J. Environ. Anal. Chem.

Numéro :

-

Pagination :

-

Date de publication :

2021-03-13

ISSN :

0306-7319

Mot(s)-clé(s) en anglais :

Soil analysis
pesticides
experimental design
pressurised-liquid extraction
time-of-flight
mass spectrometry

Discipline(s) HAL :

Chimie
Sciences de l'environnement

Résumé en anglais : [en]

A new method for the analysis of pesticides in agricultural soils by using liquid chromatography coupled with a high-resolution quadrupole time-of-flight mass spectrometer (LC-QTOF-MS) has been developed. Twenty-four ...
Lire la suite >A new method for the analysis of pesticides in agricultural soils by using liquid chromatography coupled with a high-resolution quadrupole time-of-flight mass spectrometer (LC-QTOF-MS) has been developed. Twenty-four pesticides including herbicides, insecticides or fungicides have been studied. The linearity of the external calibration of the pesticides obtained from levels of concentration ranging from 0.010 to 400 µg/Lgives satisfactory results with the correlation coefficients higher than 0.99. The quantification limits of the equipment range from 0.010 to 1.250 µg/L and correspond to the lowest standard in the calibration range for which the residual deviation is less than 60%. An experimental design has been used to optimise the parameters of pressurised-liquid extraction (PLE) of pesticides in soils. The optimised conditions have been found by using methanol as extraction solvent at a temperature of 80°C, a pressure of 150 Bars and 2 extraction cycles of 5 minutes. The mean recoveries of pesticides (Mean) are higher than 72% with a relative standard deviation(RSD) less than 21%. These results demonstrate the good efficiency of PLE for the extraction of pesticides in agricultural soils of different nature. The LC-QTOF-MS is a sensitive, linear and robust instrument for the quantification of pesticides in unpurified soil extracts by external calibration. This analytical tool is not subjected to matrix effects of soil extracts.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Date de dépôt :

2024-02-28T23:28:03Z
2024-03-15T10:53:51Z