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The present work reported a facile and simple in situ solvothermal growth method for immobilization of metal-organic framework UiO-66 via covalent bonding on amino functional silica fiber for highly sensitive solid-phase microextraction (SPME) of ten polycyclic aromatic hydrocarbons (PAHs) by coupling with gas chromatography-mass spectrometry (GC-MS) analysis. The developed SPME coated fiber has been characterized through SEM, TGA and XRD, confirmed the coating thickness of ~25 μm with high thermal and chemical stability. Under optimized conditions, the obtained method exhibited satisfactory linearity in range of 1.0-5000.0 ng L-1 for all the PAHs. The low detection limits were from 0.28 ng L-1 to 0.60 ng L-1 (S/N = 3). The UiO-66 coated fibers showed good repeatability (RSDs less than 8.2%, n = 5) and satisfying reproducibility between fiber to fiber (RSDs less than 8.9%, n = 5). This method was successfully used for simultaneous determination of ten PAHs from Minjiang water and soil samples with satisfactory recoveries of 87.0-113.6% and 83.8-116.7%, respectively. Experimental results shows that the chemical bonding approach has dramatically improve the stability and lifetime of pure MOFs coating for SPME in sample pretreatment. © 2016 Elsevier B.V..
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Journal of Chromatography A
ISSN: 0021-9673
Year: 2016
Volume: 1436
Page: 1-8
3 . 9 8 1
JCR@2016
3 . 8 0 0
JCR@2023
ESI HC Threshold:235
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
SCOPUS Cited Count: 89
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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