Journal
TALANTA
Volume 129, Issue -, Pages 600-605Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2014.06.013
Keywords
Metal-organic frameworks; Solid-phase microextraction; Sol-gel technology; Gas chromatography-mass spectrometry; Polycyclic aromatic hydrocarbons
Categories
Funding
- National Natural Science Foundation of China [31171698]
- Innovation Research Group Program of Department of Education of Hebei for Hebei Provincial Universities [LJRC009]
- Natural Science Foundation of Hebei Province [B2012204028]
Ask authors/readers for more resources
In this study, polydimethylsiloxane/metal-organic frameworks (PDMS/MOFs), including PDMS/MIL-101 and PDMS/MOF-199, were immobilized onto a stainless steel wire through sol-gel technique as solid-phase microextraction (SPME) fiber coating. The prepared fibers were used for the extraction of some polycyclic aromatic hydrocarbons (PAHs) from water samples prior to gas chromatography-mass spectrometry (GC-MS) analysis. Under the optimized experiment conditions, the PDMS/MIL-101 coated fiber exhibited higher extraction efficiency towards PAHs than that of PDMS/MOF-199. Several parameters affecting the extraction of PAHs by SPME with PDMS/MIL-101 fiber, including the extraction temperature, extraction time, sample volume, salt addition and desorption conditions, were investigated. The limits of detection (LODs) were less than 4.0 ng L-1 and the linearity was observed in the range from 0.01 to 2.0 mu g L-1 with the correlation coefficients (r) ranging from 0.9940 to 0.9986. The recoveries of the method for the PAHs from water samples at spiking levels of 0.05 and 0.2 mu g L-1 ranged from 78.2% to 110.3%. Single fiber repeatability and fiber-to-fiber reproducibility were less than 9.3% and 13.8%, respectively. (C) 2014 Elsevier B.V. All rights reserved.
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