Sanagi, Mohd. Marsin and Zainal Abidin, Nurul Auni and See, Hong Heng and Wan Ibrahim, Wan Aini (2008) Double-phase liquid membrane extraction for the analysis of pesticides. The Malaysian Journal of Analytical Sciences, 9 (3). pp. 570-574. ISSN 1394-2506
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Official URL: http://www.ukm.my/mjas/v12_n3/Mohd%20Marsin%20Sana...
Abstract
A simple and solvent minimized sample preparation technique based on two-phase hollow fiber-protected liquid-phase microextraction was investigated for HPLC analysis of selected pesticides in water samples. Four pesticides (procymidon, methidation, quinalphos, and vinclozolin) were considered as target analytes. Parameters such as extraction solvent, salt concentration, stirring speed, extraction time, and pH value were optimized using spiked deionised water samples. The analytes were extracted from 12 mL water samples through organic solvent (n-hexane and isooctane) immobilized in the pores of a porous polypropylene hollow fiber into 50 µL acceptor phase present inside the hollow fiber. Excellent separations of analytes were obtained on C18 column using acetonitrile-water ratio of 55:45 v/v at elevated flow rate of 0.8 mL/min.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Membrane extraction, Liquid-phase Microextraction |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Science |
| ID Code: | 430 |
| Deposited By: | Kamariah Mohamed Jong |
| Deposited On: | 19 Nov 2012 03:40 |
| Last Modified: | 19 Nov 2012 07:11 |
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