Preconcentration and Determination of Organophosphorus Pesticides in Water Samples by Carbon Nanotube Reinforced Hollow Fiber Solid/Liquid Phase Microextraction and Gas Chromatography-Flame Ionization Detector
Diyanoosh Mardanbeigi, Mahmoud Ebrahimi*, Mohammad Reza Bozorgmehr
Department of Chemistry, Mashhad Branch, Islamic Azad University Mashhad, Iran.
DOI : http://dx.doi.org/10.13005/bbra/1867
ABSTRACT: Pesticides were extracted from the sample to the organic solvent immobilized in the fibre and they were desorbed in methanol prior to chromatographic analysis. Experimental parameters related to microextraction such as type of extraction time , organic solvent and agitation rate have been optimized. The extraction method has been validated for several types of real samples, and no matrix effect was observed. The technique requires minimal sample handling and solvent consumption. Using optimum conditions, low detection limits (0.03–3.91µgL−1) and good linearity (R2 > 0.96) were obtained. Repeatability ranged from 3.1 to 11.1%. Finally The obtained results indicated that the method can be successfully applied for microextraction and determination of pesticides in environmental samples.
KEYWORDS: Pesticides; extracted; Preconcentration
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Copy the following to cite this article: Mardanbeigi D, Ebrahimi M, Bozorgmehr M. R. Preconcentration and Determination of Organophosphorus Pesticides in Water Samples by Carbon Nanotube Reinforced Hollow Fiber Solid/Liquid Phase Microextraction and Gas Chromatography-Flame Ionization Detector. Biosci Biotech Res Asia 2015;12(3) |
Copy the following to cite this URL: Mardanbeigi D, Ebrahimi M, Bozorgmehr M. R. Preconcentration and Determination of Organophosphorus Pesticides in Water Samples by Carbon Nanotube Reinforced Hollow Fiber Solid/Liquid Phase Microextraction and Gas Chromatography-Flame Ionization Detector. Biosci Biotech Res Asia 2015;12(3). Available from: https://www.biotech-asia.org/?p=2217 |