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A convenient approach for the determination of multiple trace BPs using an in-syringe-assisted solid phase microextraction system packed with elastic spongy graphene rods coupled with HPLC

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Abstract

An elastic cylindrical three-dimensional porous spongy graphene rod (3D-PSGR) was synthesized by a facile one-step hydrothermal method and applied in a syringe system as a solid phase adsorbent for the extraction of nine trace bisphenol analogs (BPs) from environmental samples. In this study, a simple sample pretreatment procedure in-syringe-assisted solid phase microextraction (ISA-SPME) was developed for the detection of nine BPs with HPLC. The full protocols for the extraction and elution process were achieved in a syringe. After enrichment, the sample solution was expelled slowly from the syringe to leave the adsorbent with the analytes behind. The analyte-enriched adsorbent was then eluted by drawing MeOH into the syringe, and the elution solution was then injected in HPLC. The 3D-PSGR exhibits excellent cycling stability and can be reused for eight consecutive cycles without significant loss of extraction efficiencies. The 3D-PSGR-ISA-SPME was applied successfully to the analysis of nine BPs in river water and soil samples. The method detection limits (MDLs) were in the range of 0.39–3.97 ng mL−1, and the extraction recoveries of the spiked samples were in the range of 96.5–102.6% with relative standard deviations (RSDs) of 2.11–4.27%. A convenient method is proposed for the analysis of nine trace BPs in environmental samples.

Graphical abstract: A convenient approach for the determination of multiple trace BPs using an in-syringe-assisted solid phase microextraction system packed with elastic spongy graphene rods coupled with HPLC

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Publication details

The article was received on 10 Feb 2017, accepted on 10 Apr 2017 and first published on 10 Apr 2017


Article type: Paper
DOI: 10.1039/C7AY00352H
Citation: Anal. Methods, 2017, Advance Article
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    A convenient approach for the determination of multiple trace BPs using an in-syringe-assisted solid phase microextraction system packed with elastic spongy graphene rods coupled with HPLC

    L. Wang, Q. Li and L. Zhang, Anal. Methods, 2017, Advance Article , DOI: 10.1039/C7AY00352H

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