SPE-UPLC-MS/MS for Determination of 36 Monomers of Alkylphenol Ethoxylates in Tea.

ABSTRACT: 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 μg/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 LODs of OPEOs and NPEOs are 0.008-2.09 μg/kg and 0.053-1.67 μg/kg, respectively. The LOQs of OPEOs and NPEOs are 0.024-6.27 and 0.16-5

SUBMITTER: Lin Q 

PROVIDER: S-EPMC10096240 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature