Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 21, Pages 13249-13255Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta02974e
Keywords
-
Funding
- National Natural Science Foundation of China [21775056]
- National Basic Research Program of China [2015CB932001]
- China Postdoctoral Science Foundation [2018M630510]
- Fundamental Research Funds for the Central Universities [JUSRP51714B]
- National First-class Discipline Program of Food Science and Technology [JUFSTR20180301]
Ask authors/readers for more resources
Development of new coating materials for solid-phase microextraction (SPME) along with facile methods for the fabrication of their firm coatings on SPME fibers is urgently needed for sample preparation. Here we show room-temperature preparation of a novel covalent organic framework (COF) TFPB-BD from 1,3,5-tris-(4-formylphenyl) benzene (TFPB) and benzidine (BD), and in situ room-temperature fabrication of a TFPB-BD bonded fiber for SPME of polychlorinated biphenyls (PCBs). TFPB and BD were employed as monomers for in situ growth of a new COF TFPB-BD on an amino-functionalized stainless steel fiber at room temperature. The developed TFPB-BD bonded fiber was used to develop a new SPME method for GC/MS/MS determination of trace PCBs in aquatic products. The developed analytical method gives enhancement factors of 4471-7488 and detection limits of 0.07-0.35 ng L 1. The precision (RSD) for six replicate determinations of 100 ng L 1 PCBs with a single fiber and the fiber-to-fiber reproducibility for three parallel prepared fibers was in the range of 3.8-8.8%, and 5.3-9.7%, respectively. The recoveries for spiked 1.0 mg kg 1 PCBs in aquatic products were 87.1-99.7%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available