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Dynamic liquid-phase microextraction with HPLC for the determination of phoxim in water samples

✍ Scribed by Pei Liang; Jing Xu; Li Guo; Feng Song

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
513 KB
Volume
29
Category
Article
ISSN
1615-9306

No coin nor oath required. For personal study only.

✦ Synopsis

Dynamic liquid-phase microextraction with HPLC for the determination of phoxim in water samples

A new method, which involves dynamic liquid-phase microextraction followed by HPLC with variable wavelength detection, was developed to determine phoxim in water samples. Experimental parameters affecting the extraction efficiency, such as extraction solvent, solvent volume, sampling volume, dwell time, number of samplings, and salt concentration were investigated. Under the optimal extraction conditions, phoxim was found to yield a good linear calibration curve in the concentration range from 0.01 to 10 lg/mL. The LOD is 2 ng/mL, and RSD at the 100 ng/mL levels is 8.9%. Lake water and tap water samples were successfully analyzed using the proposed method.

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