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首页> 外文期刊>RSC Advances >Development of supramolecular solvent based microextraction prior to high performance liquid chromatography for simultaneous determination of phenols in environmental water
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Development of supramolecular solvent based microextraction prior to high performance liquid chromatography for simultaneous determination of phenols in environmental water

机译：高效液相色谱法之前用于超分子溶剂的微萃取技术的开发，用于同时测定环境水中的酚

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A simple and eco-friendly preconcentration method, supramolecular solvent (SUPRAS) based microextraction, combined with high performance liquid chromatography (HPLC) has been developed for the determination of phenols in water. Seven phenols include phenol, 4-nitrophenol, 2-chlorophenol, 2-nitrophenol, 4-chloro-3-methylphenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol. The SUPRAS fulfills the requirement of green and sustainable analytical chemistry in that surfactant was used for extraction in mild conditions without the requirement of heating, organic solvent and acid addition. The SUPRAS was produced from micelles of anionic surfactant (sodium dodecyl sulfate; SDS) and cationic surfactant (tetrabutylammonium bromide; TBABr) at the molar ratio of 1?:?3. After AlCl3 addition, a turbid solution was observed due to the neutralization charge of micellar head groups with the counterion (Al3+) of salt, resulting in liquid–liquid separation. After centrifugation, the SUPRAS was separated by floating on the top layer. Under the optimum conditions, a high enrichment factor (25 to 64), low limit of detection (1 to 4 μg L?1) and good repeatability (RSD ≤ 10.1%) were obtained. The SUPRAS-HPLC was successfully applied for the determination of the studied phenols in environmental water samples with good recoveries (82 to 105%).
机译：已经开发了一种简单且环保的预浓缩方法，即基于超分子溶剂（SUPRAS）的微萃取结合高效液相色谱（HPLC）来测定水中的酚。七个酚包括苯酚，4-硝基苯酚，2-氯苯酚，2-硝基苯酚，4-氯-3-甲基苯酚，2，4-二氯苯酚和2,4,6-三氯苯酚。 SUPRAS满足了绿色和可持续分析化学的要求，因为表面活性剂可在温和条件下用于萃取，而无需加热，添加有机溶剂和添加酸。 SUPRAS由阴离子表面活性剂（十二烷基硫酸钠; SDS）和阳离子表面活性剂（溴化四丁基铵; TBABr）的胶束以1∶∶3的摩尔比制得。加入AlCl 3 后，由于胶束头基团与抗衡离子（Al 3 + ），导致液液分离。离心后，通过漂浮在顶层上来分离SUPRAS。在最佳条件下，高富集因子（25至64），低检测限（1至4μgL ？1 ）和良好的重复性（RSD≤10.1％） ）。 SUPRAS-HPLC成功地用于测定环境水样中的研究酚，回收率高（82％至105％）。

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