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Abstract: This paper reports a method using molecularly imprinted nanosilica as the solid-phase extraction sorbent to extract bisphenol A (BPA) from fish samples. The selective extraction efficiency of BPA from its structure-analogous by molecularly imprinted solid-phase extraction (MISPE) was compared with commercial C18 SPE column. The reproducibility of MISPE and optimal flow rate of sample were studied. There was a linear correlation in the concentration range of 0.7 - 114.1 μg l-1 of BPA (r = 0.997). The limit of detection (LOD) based on three times ratio of signal to noise was 0.11 μg l-1. Under optimal conditions, the proposed method was applied to the analysis of BPA in fish samples. The amount of BPA in bream was 4.00 μg kg-1, and both concentrations of BPA in crucian and weever were below the LOD. The recoveries of BPA standard solution spiked with fish samples were in the range of 92.56 - 102.3 % with the relative standard deviation less than 10 %
Template and target information: bisphenol A, BPA
Author keywords: bisphenol, BPA-imprinted nanosilica, molecularly imprinted solid-phase extraction, Fish samples