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In situ room-temperature rapidly fabricated imine-linked covalent organic framework coated fibers for efficient solid-phase microextraction of pyrethroids.
- Source :
-
Analytica Chimica Acta . Oct2021, Vol. 1181, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
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Abstract
- A facile and rapid strategy for preparation of covalent organic framework (COF) coated fibers at ambient temperature is urgently needed for solid-phase microextraction (SPME) technology. In this work, an in situ room-temperature rapid growth strategy was developed to high-efficiently fabricate imine-linked COF (TPB-DVA) coated fibers in as little as 30 min at room temperature, and the thickness of the coating reached 9 μm. The prepared TPB-DVA coated fiber offer high thermal and chemical stability, and outstanding service lifetime. Moreover, we generalize this strategy to other two imine-linked COF (TPB-DMTP and TFPB-TAPB) coated fibers and the fibers were fabricated at room temperature for 3 h and 12 h, respectively, which demonstrate the applicability of this strategy. Subsequently, a SPME-GC-MS/MS analytical method was developed for trace pyrethroids (PYs) detection, which exhibited high enhancement factors (EFs, 2700–13195), wide linear range (0.08–800 ng L−1), low limits of detection (LODs, 0.02–0.20 ng L−1), and good repeatability (RSD ≤ 8.5%, n = 6). Furthermore, the developed analytical method was applied to tea samples and trace PYs (1.31–4.32 ng L−1) were found with satisfactory recovery (80.2–119.8%). The above results demonstrated that the feasibility of the developed strategy for the facile and rapid fabrication of imine-linked COF coated fibers. [Display omitted] • The TPB-DVA coated fiber was fabricated within 30 min at room temperature by rapid in situ strategy. • This strategy demonstrate the general applicability for rapid fabrication of imine-linked COF coated fibers. • The developed SPME-GC-MS/MS analysis method for PYs in tea exhibited high sensitivity and low LOD. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00032670
- Volume :
- 1181
- Database :
- Academic Search Index
- Journal :
- Analytica Chimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 152536626
- Full Text :
- https://doi.org/10.1016/j.aca.2021.338886