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Talanta. 2014 Mar;120:71-5. doi: 10.1016/j.talanta.2013.11.079. Epub 2013 Dec 3.

Graphene nanoplatelets as a highly efficient solid-phase extraction sorbent for determination of phthalate esters in aqueous solution.

Author information

  • 1School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
  • 2School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. Electronic address: zhangff@ecust.edu.cn.
  • 3School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China. Electronic address: bcyang@ecust.edu.cn.
  • 4School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China; Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian, 116023, China.

Abstract

Graphene nanoplatelet (GN) as a solid-phase extraction (SPE) sorbent in combination with high performance liquid chromatography has been used for the determination of five phthalate esters (PAEs) in aqueous solution. The operation parameters affecting the extraction efficiency were optimized. Comparative studies showed that GN was superior to other common SPE sorbents in terms of recovery and adsorption capacity. Under optimization conditions, detection limits of 0.09-0.33 ng mL(-1) were achieved for five PAEs and enrichment factors of 402-711 for the analytes were obtained. The proposed method was successfully applied for the determination of PAEs in tap water and drink samples with recoveries ranging from 87.7% to 100.9%.

© 2013 Published by Elsevier B.V.

KEYWORDS:

Graphene nanoplatelet; Liquid chromatography; Phthalate esters; Solid-phase extraction; Sorbent

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