Affiliation:
1. Universidad de Almería, Departamento de Química Analítica, 04120 Almería, Spain
Abstract
Abstract
A method to sample and analyze chlorothalonil and dichlofluanid in greenhouse air was evaluated. Analysis was performed by gas chromatography with electron capture detection and gas chromatography- mass spectrometry. Solid sorbents such as Chromosorb 102, Porapak R, Supelpak-2, AmberliteXAD-2, Amberlite XAD-4, and polyurethane foam were studied. The use of Soxhlet extraction and solvent desorption with sonication to desorb the pesticides from these sorbents were compared.A procedure to generate atmospheres containing known concentrations of these fungicides was established to study sorption capacity and samplingconditions. Breakthrough and storage of pesticides also were studied. Dissipation of analytes in a 24 h period after application was studied by using personal samplers in a field experiment.
Publisher
Oxford University Press (OUP)
Subject
Pharmacology,Agronomy and Crop Science,Environmental Chemistry,Food Science,Analytical Chemistry
Cited by
13 articles.
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