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Development of a hydrophilic-lipophilic-balanced copolymer@zirconium-based metal-organic framework-based solid-phase microextraction probe for the trace determination of organophosphorus pesticides in tea infusions.
Fang, Yuwen; Wang, Wanwan; Xu, Yi; Chen, Qingmin; Jiao, Tianhui; Wei, Jie; Chen, Quansheng; Chen, Xiaomei.
Afiliación
  • Fang Y; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Wang W; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Xu Y; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Chen Q; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Jiao T; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Wei J; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Chen Q; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China.
  • Chen X; College of Ocean Food and Biological Engineering, Jimei University, Xiamen, 361021, China. Electronic address: xmchen@jmu.edu.cn.
Talanta ; 281: 126823, 2024 Sep 06.
Article en En | MEDLINE | ID: mdl-39245009
ABSTRACT
Organophosphorus pesticides (OPPs) present in tea infusions pose a serious threat to human health. In this study, a sensitive method for the determination of OPPs was developed based on a direct-immersion solid-phase microextraction (DI-SPME) probe. By fine adjustment of the ratio and one-step polymerization of dihydroxy-functionalized zirconium-based metal-organic framework UiO-66-(OH)2 and divinylbenzene-N-vinyl pyrrolidone (DVB-NVP) microspheres, the DVB-NVP@ UiO-66-(OH)2 (D-N@U) composite with an optimal hydrophilic-lipophilic balance (HLB) was achieved. Furthermore, D-N@U was adhesively bonded to stainless-steel wires to fabricate a DI-SPME probe. OPPs, especially those with nonpolar properties characterized by a high octanol-water partition coefficient (log KOW), were selectively and efficiently enriched on the D-N@U-coated DI-SPME probe from tea infusions. Coupled with a gas chromatography-flame photometric detector, the as-fabricated D-N@U-coated DI-SPME probe achieved good performance for OPPs analysis with a wide linear dynamic range of 0.10-500.00 µg/L and low detection limits of 1.96-6.69 ng/L. Moreover, in spiked samples, the recoveries and relative standard deviations were in the ranges of 73.12%-101.20 % and 1.03%-6.56 %, respectively. Owing to its simple operation, high extraction efficiency, and high sensitivity, this approach has great potential for the rapid determination of multiple pesticide trace-level residues in food.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Talanta Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Talanta Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos