Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Food Chem. 2020 Oct 15;327:126882. doi: 10.1016/j.foodchem.2020.126882. Epub 2020 Apr 20.
Presence of bisphenol A (BPA) and its analogues in various environmental matrices have been well studied by now, but there is still an insufficient data on the occurrence of BPA analogues in animal-derived foodstuffs. Hence, this work describes a quick, sensitive and reliable analytical method for the simultaneous determination of eight BPA analogues in eggs, applying a solid-phase extraction procedure with PRiME HLB cartridges that combines isolation of the analytes from matrix and the sample clean-up on a single column. The limits of detection (LODs) and quantification (LOQs) for BPA analogues were in the ranges of 0.02-0.05 μg kg and 0.1-0.2 μg kg, respectively. Average recoveries were ranged between 82.7% and 105.2%. Quantitative analysis was performed on 24 real samples, the results indicate that low levels of BPA, BPB and BPS were detected, and interestingly, over ten folds higher BPP contamination levels compared to BPA were found in two egg samples.
双酚 A（BPA）及其类似物在各种环境基质中的存在已得到广泛研究，但有关动物源性食品中 BPA 类似物的存在情况仍缺乏足够的数据。因此，本工作描述了一种快速、灵敏和可靠的分析方法，用于同时测定鸡蛋中的 8 种 BPA 类似物，应用 PRiME HLB 固相萃取柱进行萃取，该方法将从基质和样品中分离分析物和样品净化在单个柱子上进行。BPA 类似物的检测限（LOD）和定量限（LOQ）分别在 0.02-0.05μg kg和 0.1-0.2μg kg范围内。平均回收率在 82.7%至 105.2%之间。对 24 个实际样品进行了定量分析，结果表明，检测到低水平的 BPA、BPB 和 BPS，有趣的是，在两个鸡蛋样品中发现 BPP 的污染水平比 BPA 高出十多倍。
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