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 %.
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Acknowledgement
This work was financially supported by the National Natural Science Foundation of China (No. 20777038), Program granted for scientific innovation research of college graduate in Jangsu province (No. JX22013128), and Nanjing medical science and technique development foundation (No. QYK 09178).
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Wei, F., Liu, X., Zhai, M. et al. Molecularly Imprinted Nanosilica Solid-Phase Extraction for Bisphenol A in Fish Samples. Food Anal. Methods 6, 415–420 (2013). https://doi.org/10.1007/s12161-012-9455-x
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DOI: https://doi.org/10.1007/s12161-012-9455-x