Extraction of Bisphenol a in Environmental Water and Soft Drink by C18-Impregnated Cellulose Triacetate Composite Film

Abstract

Bisphenol A (BPA) is an industrial chemical applied in making polycarbonate and epoxy resin that commonly used as food containers, beverage cans and baby bottles. BPA could be discharged into the environment from industrial waste and sewage treatment plant which then causing adverse effects to aquatic organism and consumers. Micro-solid phase extraction (µ-SPE) using C 18-impregnated cellulose triacetate (C 18-CTA) composite film as the adsorbent films coupled with high performance liquid chromatography-fluorescence detection (HPLC-FD) has been developed for the determination of BPA in environmental water and soft drink samples. Under the optimum extraction conditions, the method showed excellent linearity in the range of 0.1 to 500 ppb with correlation coefficient, r = 0.992. This method provided ultra-trace detection limit of 0.004 ppb, trace quantification limit of 0.01 ppb and acceptable relative recovery average in the range of 80.9 to 102.6% with relative standard deviation ≤ 9.7%. The proposed microextraction method is simple, rapid and eco-friendly as it consumes less amount of nonhazardous organic solvent.