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Efficient enrichment of triazole fungicides from fruit and vegetable samples by a spherical porous aromatic framework†
Wenjin Wang,Zhi Li,Shuaihua Zhang,Xiumin Yang,Xiaohuan Zang,Chun Wang,Zhi Wang
New Journal of Chemistry Pub Date : 01/28/2019 00:00:00 , DOI:10.1039/C8NJ06240D
Abstract

A porous aromatic framework (PAF), PAF-56P, with a large surface area, high solvent stability and good thermostability, was prepared and utilized as a solid phase microextraction (SPME) adsorbent coating for the efficient enrichment of some triazole fungicides. Coupled with gas chromatography-mass spectrometric detection, a PAF-56P based SPME method achieved good analytical performance such as low limits of detection (0.15–1.70 ng g−1), wide linear range (2.50–250 ng g−1) and good repeatability (relative standard deviations, RSDs < 9.2%). The PAF-56P SPME coating had a high durability for 100 replicate extractions without a significant decrease in extraction capability. The developed method was feasible for the analysis of triazole fungicides from fruits and vegetables with satisfactory recoveries (81.3–119%).

Graphical abstract: Efficient enrichment of triazole fungicides from fruit and vegetable samples by a spherical porous aromatic framework
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