A hierarchical porous composite magnetic sorbent of reduced graphene oxide embedded in polyvinyl alcohol cryogel for solvent‐assisted‐solid phase extraction of polycyclic aromatic hydrocarbons

Natnaree Rattanakunsong; Sirintorn Jullakan; Justyna Płotka-Wasylka; Opas Bunkoed

doi:10.1002/jssc.202200041

A hierarchical porous composite magnetic sorbent of reduced graphene oxide embedded in polyvinyl alcohol cryogel for solvent‐assisted‐solid phase extraction of polycyclic aromatic hydrocarbons

Abstract

A hierarchical porouscomposite magnetic sorbent was fabricated and applied tothe dispersive solvent-assisted solid-phase extraction of five polycyclic aromatichydrocarbons. A sorbent was first prepared by incorporating graphene oxide,calcium carbonate, and magnetite nanoparticles into a polyvinyl alcohol cryo-gel. The graphene oxide was converted to reduced graphene oxide using ascorbicacid and a hierarchical porous structure was produced by reacting hydrochlo-ric acid with incorporated calcium carbonate to generate carbon dioxide bubbleswhichcreatedasecondnetwork.Beforeextractingthetargetanalytes,theextrac-tion solvent was introduced into the hierarchical pore network of the sorbent.The extraction was based on the partition between the analytes and introducedextraction solvent and the adsorption of analytes on reduced graphene oxide.Theextraction efficiency was enhanced through π-π and hydrophobic interactionsbetween polycyclic aromatic hydrocarbons and reduced graphene oxide andextraction solvent. The extracted polycyclic aromatic hydrocarbons were deter-mined by using high-performance liquid chromatography coupled with a fluo-rescence detector. The developed method was applied to extract polycyclic aro-matic hydrocarbons in disposable diaper, coffee, and tea samples and recoveriesfrom 84.5 to 99.4% were achieved with relative standard deviations below 7%.The developed sorbent exhibited good reproducibility and could be reused for 10cycles.The developed sorbent exhibited good reproducibility and could be reusedfor 10 cycles.The developed sorbent exhibited good reproducibility and could bereused for 10 cycles.

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Authors (4)

Natnaree Rattanakunsong
- Prince of Songkla University
Sirintorn Jullakan
- Prince of Songkla University
Justyna Płotka-Wasylka dr hab. inż.
Opas Bunkoed
- Prince of Songkla University

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DOI:: Digital Object Identifier (open in new tab) 10.1002/jssc.202200041
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Articles

Type:

artykuły w czasopismach

Published in:

JOURNAL OF SEPARATION SCIENCE no. 45, pages 1774 - 1783,
ISSN: 1615-9306

Language:

English

Publication year:

2022

Bibliographic description:

Rattanakunsong N., Jullakan S., Płotka-Wasylka J., Bunkoed O.: A hierarchical porous composite magnetic sorbent of reduced graphene oxide embedded in polyvinyl alcohol cryogel for solvent‐assisted‐solid phase extraction of polycyclic aromatic hydrocarbons// JOURNAL OF SEPARATION SCIENCE -Vol. 45,iss. 10 (2022), s.1774-1783

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