文献类型： 外文期刊
第一作者： Lin, Qin
作者： Lin, Qin;Qin, Yujie;Sun, Hezhi;Wang, Xinru;Yang, Mei;Zhang, Xinzhong;Zhou, Li;Luo, Fengjian
作者机构：
关键词： alkylphenol ethoxylates; SPE; tea; UPLC-MS/MS
期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN：
年卷期： 2023 年 28 卷 7 期
页码：
收录情况： SCI
摘要： Alkylphenol ethoxylates (APEOs) represent a non-ionic surfactant widely used as adjuvants in pesticide formulation, which is considered to cause an endocrine-disrupting effect. In the current study, we established a detection method for the APEOs residue in tea based on solid-phase extraction (SPE) for the simultaneous analysis of nonylphenol ethoxylates (NPEOs) and octylphenol ethoxylates (OPEOs) by UPLC-MS/MS. In the spiked concentrations from 0.024 to 125.38 mu g/kg for 36 monomers of APEOs (n(EO) = 3-20), the recoveries of APEOs range from 70.3-110.7% with RSD = 16.9%, except for OPEO20 (61.8%) and NPEO20 (62.9%). The LOQs of OPEOs and NPEOs are 0.024-6.27 and 0.16-5.01 mu g/kg, respectively. OPEOs and NPEOs are detected in 50 marketed tea samples with a total concentration of 0.057-12.94 and 0.30-215.89 mu g/kg, respectively. The detection rate and the range of the monomers of NPEOs are generally higher than those of OPEOs. The current study provides a theoretical basis for the rational use of APEOs as adjuvants in commercial pesticide production.
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