Abstract
Cloud point extraction (CPE) is a separation and preconcentration of non-ionic surfactant from one liquid phase to another. In this study, Sylgard 309 and three different types of additives for CPE, namely CPE-Sylgard, CPE-Sylgard-BMIMBr and CPE-Sylgard-GLDA, are investigated to extract methylphenol from water samples. The methylphenols are well separated by reversed-phase high-performance liquid chromatography (HPLC) with isocratic elution of acetonitrile : water; 60 : 40 (v/v) and detection at 260 nm. The optimized parameters for the effect of salt, surfactant, temperature, time of extraction, pH, interference study and the performance of different additives on methylphenol extraction are investigated. CPE-Sylgard-GLDA is chosen because it gives us a high peak and good peak area compared with CPE-Sylgard and CPE-Sylgard-BMIMBr. The recovery extractions of CPE-Sylgard-GLDA are obtained in the range of 80–99% as the percentage of relative standard deviation (RSD) is less than 10. The LOD and LOQ are 0.05 ppm and 0.18 ppm, respectively. The method developed for CPE-Sylgard-GLDA coupled with HPLC is feasible for the determination of methylphenol because it is simple, effective, cheap, and produces a high percentage of recovery.
Highlights
Phenols, one of the hazardous pollutants, exist extensively in the environment
The method developed for Cloud point extraction (CPE)-Sylgard-GLDA coupled with high-performance liquid chromatography (HPLC) is feasible for the determination of methylphenol because it is simple, effective, cheap, and produces a high percentage of recovery
It can be clearly seen that the extraction recovery of methylphenol slightly increased from 10% to 20% (w/v) when the concentration of the surfactant increased for all methods
Summary
One of the hazardous pollutants, exist extensively in the environment. The phenols in the environment mainly come2018 The Authors. One of the hazardous pollutants, exist extensively in the environment. The phenols in the environment mainly come. From industrial and agricultural products such as drugs, dyes, pesticides and paper. Phenols 2 are formed from natural processes such as decomposition of leaves and wood [1]. The anthropogenic activities can be considered as the main source of phenols in the environment [2]
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