Determination of phenolic compounds in environmental water samples after solid-phase extraction with β-cyclodextrin-bonded silica particles coupled with a novel liquid-phase microextraction followed by gas chromatography-mass spectrometry
✍ Scribed by Hakim Faraji; Syed W. Husain; Masoumeh Helalizadeh
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 221 KB
- Volume
- 35
- Category
- Article
- ISSN
- 1615-9306
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✦ Synopsis
Abstract
A novel approach for the sample pre‐treatment and determination of eight phenolic compounds in environmental water samples has been developed by hyphenating solid‐phase extraction (SPE) and liquid‐phase microextraction (LPME) techniques based on solid organic drop combined with gas chromatography‐mass spectrometry detection (GC‐MS). After pre‐concentration and purification of the sample through column containing 60 mg of β‐cyclodextrin‐bonded silica particles as stationary phase, under the optimum conditions, LPME technique has been performed on the eluent solution. Under the selected conditions, limit of detection (LOD) of 0.002–0.04 μg/L (S/N=3), limit of quantification (LOQ) of 0.007–0.15 μg/L (S/N=10), pre‐concentration factor of 752–3135 and linearity range of 0.01–25 μg/L have been obtained. A reasonable repeatability (RSD≤9.5%, n=5) with satisfactory coefficient of determination has been obtained between 0.9981 and 0.9997. The relative recoveries of the waste, sea, river and well water samples were higher than 79%.