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Heating‑, cooling‑ and vacuum‑assisted solid‑phase microextraction (HCV‑SPME) for efficient sampling of environmental pollutants in complex matrices

Citation

Ghiasvand, A and Yazdankhah, F and Paull, B, Heating‑, cooling‑ and vacuum‑assisted solid‑phase microextraction (HCV‑SPME) for efficient sampling of environmental pollutants in complex matrices, Chromatographia pp. 1-10. ISSN 0009-5893 (2020) [Refereed Article]

Copyright Statement

Copyright 2020 Springer-Verlag GmbH Germany, part of Springer Nature

DOI: doi:10.1007/s10337-020-03869-0

Abstract

This research introduces a novel solid-phase microextraction technology, in which the features of heating of sample, cooling of sorbent, and extraction under vacuum condition have been merged. Heating-, cooling- and vacuum-assisted solid-phase microextraction (HCV-SPME) method was developed as an efficient solution for the direct extraction of volatile and semi-volatiles species in complex solid samples. HCV-SPME was coupled with an in-needle capillary adsorption trap (HCV-INCAT) and applied to the direct extraction of polycyclic aromatic hydrocarbons (PAHs) within soil samples. It consisted of polythiophene/carboxylic acid modified multi-walled carbon nanotube nanocomposite, which was synthesized and wall-coated within a platinized stainless-steel needle via electropolymerization. The influential experimental variables (desorption conditions, sample temperature, adsorption temperature, sampling flow rate, and vacuum level) on the extraction efficiency were optimized. The developed HCV-INCAT technique was used in conjunction with GC-FID and applied for the extraction and determination of PAHs in contaminated soil samples, closely matching with those obtained using a validated ultrasonic-assisted solvent extraction procedure. Under the optimal conditions, linear dynamic ranges, limits of detection, and relative standard deviations were obtained 0.0075gg−1, 820pgg−1, and 7.112.1%, respectively, for direct extraction of naphthalene, fluorene, phenanthrene, fluoranthene, and pyrene from solid samples.

Item Details

Item Type:Refereed Article
Keywords:heating-, cooling- and vacuum-assisted solid-phase microextraction, in-needle capillary adsorption trap, polycyclic aromatic hydrocarbons, soil
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Analytical spectrometry
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Ghiasvand, A (Professor Alireza Ghiasvand)
UTAS Author:Paull, B (Professor Brett Paull)
ID Code:137553
Year Published:2020
Web of Science® Times Cited:13
Deposited By:Chemistry
Deposited On:2020-02-19
Last Modified:2020-06-23
Downloads:0

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