2D Porous Aromatic Framework as a Novel Solid-Phase Extraction Adsorbent for the Determination of Trace BPA in Milk

  • Dan Yin
  • , Yanlong Chen
  • , Yanhao Zhang
  • , Zhicong Yang
  • , Hongyan Mao*
  • , Shaige Xia
  • , Wenfen Zhang
  • , Wuduo Zhao
  • , Shusheng Zhang*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

21 Citations (Scopus)

Abstract

A rapid and effective solid-phase extraction high-performance liquid chromatography fluorescence detection (SPE-HPLC–FLD) method, using a novel porous aromatic framework (PAF-6) as solid-phase extraction sorbent, was established to enrich and determine bisphenol (BPA) in milk and its packing samples. Parameters influencing the extraction efficiency, such as volume of the sample solutions, pH of the sample, and the eluent volume, were examined. The limits of detection and quantitation were 0.1 and 0.33 ng mL−1, respectively. The recovery of the method was desirable at 81–91% and the relative standard deviation was less than 2.35%. Besides, the PAF-6-based cartridges exhibited superior reusability for milk sample analysis. In addition, theoretical computations were performed to further understand the molecular interaction mechanism between the PAF-6 and the BPA. The results showed that PAF-6 had an excellent adsorption capability for BPA based on hydrogen bonding and the inclusion interactions of host–guest. The proposed method is sensitive, simple, and cost-saving, and provides a detection platform for the monitoring of BPA residues in real milk samples.

Original languageEnglish
Pages (from-to)749-758
Number of pages10
JournalChromatographia
Volume81
Issue number5
Early online date22 Mar 2018
DOIs
Publication statusPublished - May 2018

User-Defined Keywords

  • Bisphenol A
  • HPLC
  • Milk
  • Porous aromatic framework
  • Solid-phase extraction

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