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Porous graphene-coated stainless-steel fiber for direct immersion solid-phase microextraction of polycyclic aromatic hydrocarbons

Abstract

Porous graphene (PG) as a type of graphene-based material with some holes/pores within the atomic plane has attracted great attention recently. In this study, PG was prepared by combustion method and used as a new coating on stainless-steel fiber for direct immersion solid-phase microextraction of polycyclic aromatic hydrocarbons (PAHs). Compared to polydimethylsiloxane-coated fiber, PG-coated SPME fiber shows higher enrichment factors (EFs) and the EFs increased with the number of aromatic rings. The excellent extraction ability was mainly due to the existence of nanopores and PG also can provide π-π stacking interaction and hydrophobic properties to better extraction efficiency for aromatic compound molecules. Meanwhile, PG-coated fiber exhibits good precision (< 8%), wide linear ranges (0.002-10 μg L-1), and low limits of detection (1-2 ng L-1) for PAHs. The results verified that the novel prepared PG coating was a promising sorbent for extraction and trace analysis of PAHs in environmental water sample.

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Publication details

The article was received on 25 Oct 2018, accepted on 02 Dec 2018 and first published on 03 Dec 2018


Article type: Paper
DOI: 10.1039/C8AY02330A
Citation: Anal. Methods, 2018, Accepted Manuscript
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    Porous graphene-coated stainless-steel fiber for direct immersion solid-phase microextraction of polycyclic aromatic hydrocarbons

    Y. Huang, J. Chen, Z. Li, L. Wang, M. GUAN and H. Qiu, Anal. Methods, 2018, Accepted Manuscript , DOI: 10.1039/C8AY02330A

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