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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 0.10.4 ng/g. The calibration curves were linear over the range of 2.45000 ng/g. Relative standard deviations (RSDs%) were calculated 5.17.0% (n = 6). The developed technique was employed for the analysis of BTEX in contaminated soil samples.

Item Details

Item Type:Refereed Article
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:2020-08-20
Downloads:0

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