Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
Chemosphere. 2021 Aug;277:130232. doi: 10.1016/j.chemosphere.2021.130232. Epub 2021 Mar 15.
Bisphenol A is a phenolic plasticizer used in the production of various plastic products. Its endocrine-disrupting effects on ecological and human health lead to replacement with its structural analogs. The occurrence of these analogs in the soil environment, which is an important sink for bisphenols, has been rarely reported. In this study, a robust method was developed to determine bisphenol A and 13 analogs in soil using accelerated solvent extraction combined with in-line purification for fast and efficient extraction and ultra-performance liquid chromatography-tandem mass spectrometry for simultaneous and accurate quantification. The method detection limits of 14 bisphenols were between 0.01 and 0.39 ng g, and the recoveries were in the range of 80%-120%. The developed method was applied to 29 agricultural and urban soil samples from 21 provinces in China, and 12 bisphenols were detected. Among them, the contents of bisphenol A, F, and P were up to 166.0, 212.9, and 78.2 ng g dry weight, respectively. The maximum concentration of bisphenol P was at least ten times higher than literature values in food and other environmental matrices. The results of this study showed that "hot spots" existed for bisphenol pollution in soil and that further investigations were necessary to avoid regrettable substitutions.
双酚 A 是一种酚类增塑剂，用于生产各种塑料制品。其对生态和人类健康的内分泌干扰作用导致了其结构类似物的替代。这些类似物在土壤环境中的出现，土壤是双酚的重要汇，很少有报道。在本研究中，开发了一种使用加速溶剂萃取结合在线净化的强大方法，用于快速高效地提取土壤中的双酚 A 和 13 种类似物，并使用超高效液相色谱-串联质谱法进行同时准确的定量。14 种双酚的方法检测限在 0.01 到 0.39 ng g 之间，回收率在 80%-120%之间。该方法应用于中国 21 个省的 29 个农业和城市土壤样品，检测到 12 种双酚。其中，双酚 A、F 和 P 的含量高达 166.0、212.9 和 78.2 ng g 干重。双酚 P 的最大浓度至少比食品和其他环境基质中的文献值高十倍。本研究结果表明，土壤中存在双酚污染的“热点”，需要进一步调查，以避免遗憾的替代。
