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An ultrasound-assisted pressure-regulated solid-phase microextraction setup for fast and sensitive analysis of volatile pollutants in contaminated soil
Citation
Beiranvand, M and Ghiasvand, A, An ultrasound-assisted pressure-regulated solid-phase microextraction setup for fast and sensitive analysis of volatile pollutants in contaminated soil, Environmental Science and Pollution Research pp. 1-10. ISSN 0944-1344 (2020) [Refereed Article]
Copyright Statement
Copyright Springer-Verlag GmbH Germany, part of Springer Nature 2020
DOI: doi:10.1007/s11356-020-09620-4
Abstract
Release of analytes from their native matrix and diffusion into the gas phase is the rate-limiting step for the sampling of volatiles in complex solid samples. This limitation is more serious in the solvent-less and solvent-free microextraction sampling strategies. In this research, a three-stage reinforced sampling strategy including high-pressure/sonication/low-pressure was introduced for fast and efficient release of analytes in soil samples. For this purpose, a novel ultrasound-assisted pressure-regulated solid-phase microextraction (UA-PR-SPME) device was developed. It was coupled with gas chromatography-flame ionization detection (GC-FID) and carried out for the determination of benzene, toluene, ethylbenzene, and xylenes (BTEX, as the model analytes) in complex solid samples. Graphene oxide/3-aminopropyltriethoxysilane (GO-APTES) nanocomposite was synthesized and used as the SPME fiber coating. Under optimal conditions, the limits of detection (LODs) were obtained 0.1–0.4 ng/g. The calibration curves were linear over the range of 2.4–5000 ng/g. Relative standard deviations (RSDs%) were calculated 5.1–7.0% (n = 6). The developed technique was employed for the analysis of BTEX in contaminated soil samples.
Item Details
Item Type: | Refereed Article |
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Keywords: | solid-phase microextraction, ultrasound-assisted extraction, pressure-regulated extraction, gas chromatography, soil |
Research Division: | Chemical Sciences |
Research Group: | Analytical chemistry |
Research Field: | Separation science |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the chemical sciences |
UTAS Author: | Ghiasvand, A (Professor Alireza Ghiasvand) |
ID Code: | 139537 |
Year Published: | 2020 |
Web of Science® Times Cited: | 4 |
Deposited By: | Chemistry |
Deposited On: | 2020-06-19 |
Last Modified: | 2022-08-29 |
Downloads: | 0 |
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