4.7 Article

Magnetic three-dimensional graphene nanoparticles for the preconcentration of endocrine-disrupting phenols

期刊

MICROCHIMICA ACTA
卷 181, 期 11-12, 页码 1249-1255

出版社

SPRINGER WIEN
DOI: 10.1007/s00604-014-1234-5

关键词

3D-Graphene magnetic nanoparticles; Honey peach juice sample; High performance liquid chromatography; Endocrine disrupting phenols

资金

  1. National Natural Science Foundation of China [31171698]
  2. Scientific and Technological Research Foundation of Department of Education of Hebei Province [ZD20131033]
  3. Natural Science Foundations of Hebei [B2012204028]

向作者/读者索取更多资源

We have prepared a novel magnetic three-dimensional graphene composite for use as a sorbent for the extraction of the endocrine disrupting phenols (EDPs) including bisphenol A (BPA), 4-tert-butylphenol (t-BP), and 4-tert-octylphenol (t-OP) prior to their determination by HPLC with fluorescence detection. The properties and morphology of the composite were characterized by scanning electron microscopy, and transmission electron microscopy. Several parameters that affect extraction were optimized. The new sorbent displays excellent adsorption capacity for the EDPs. Quantification was achieved by matrix-matched calibration. The calibration plots for the EDPs in a juice sample are linear in the 0.05 to 10 ng mL(-1) concentration range for BPA, and from 0.1 to 10.0 ng mL(-1) for both t-BP and t-OP, with correlation coefficients between 0.9966 and 0.9981. Averaged recoveries range from 88.8 % to 108.8 %. The limits of detection based on a signal to noise ratio of 3 are between 10 and 25 pg mL(-1). The method was successfully applied to the determination of three EDPs in honey peach juice samples.

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