Ben Hassine S, Hammami B, Touil S, Driss M R
Laboratory of Heteroatom Organic Chemistry (UR 11ES29), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia.
Bull Environ Contam Toxicol. 2015 Nov;95(5):654-60. doi: 10.1007/s00128-015-1570-0. Epub 2015 Jun 12.
Solid-phase extraction (SPE) procedure followed by derivatization and gas chromatography electron capture detection was evaluated for the determination of trace amounts of chlorophenols (CPs) in waters samples. Different parameters affecting extraction efficiency such as, volume of elution solvent, volume and pH of water sample, quantity of sorbent phase were studied and optimized. SPE was carried out on polystyrene-divinylbenzene (Bond Elut ENV) and high recoveries were obtained using 1000 mg of this cartridge for the treatment of 500 mL of acidified water sample. The described method was then tested on spiked tap, mineral, ground and surface water samples. The overall procedure provided limits of detection lower than 20 ng L(-1), recoveries of 70%-106% and an enrichment factor of 500 for the examined CPs in 500 mL water samples. Among the studied compounds, pentachlorophenol was detected in tap water at a concentration level of 0.06 µg L(-1).
对采用固相萃取（SPE）然后衍生化及气相色谱电子捕获检测法测定水样中痕量氯酚（CPs）进行了评估。研究并优化了影响萃取效率的不同参数，如洗脱溶剂体积、水样体积和pH值、吸附剂相的量。在聚苯乙烯 - 二乙烯基苯（Bond Elut ENV）上进行固相萃取，使用1000 mg该柱管处理500 mL酸化水样可获得高回收率。然后在所加标的自来水、矿泉水、地下水和地表水样品上测试了所述方法。整个程序对500 mL水样中所检测的氯酚提供了低于20 ng L⁻¹的检测限、70% - 106%的回收率以及500的富集因子。在所研究的化合物中，自来水中检测到五氯酚的浓度水平为0.06 µg L⁻¹。
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