Affiliation:
1. Pamukkale University, Faculty of Arts and Sciences, Department of Analytical Chemistry, 20017 Denizli, Turkey
Abstract
Abstract
A dispersive liquid–liquid microextraction (DLLME) procedure coupled with GC/MS detection is described for preconcentration and determination of some organophosphorus and azole group pesticides from water samples. Experimental conditions affecting the DLLME procedure were optimized by means of an experimental design. A mixture of 60 μL chlorobenzene (extraction solvent) and 750 μL acetonitrile (disperser solvent), 3.5 min extraction time, and 7.5 mL aqueous sample volume were chosen for the best recovery by DLLME. The linear range was 1.6–32 μg/L. The LOD ranged from 48.8 to 68.7 ng/L. The RSD values for organophosphorus and azole group pesticides at spiking levels of 3, 6, and 9 μg/L in water samples were in the range of 1.1 – 12.8%. The applicability and accuracy of the developed method were determined by analysis of spiked water samples, and the recoveries of the analyzed pesticides from artesian, stream, and tap waters at spiking levels of 3, 6, and 9 μg/L were 89.3–105.6, 89.5–103.0, and 92.0–111.3%, respectively.
Publisher
Oxford University Press (OUP)
Subject
Pharmacology,Agronomy and Crop Science,Environmental Chemistry,Food Science,Analytical Chemistry
Cited by
6 articles.
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