Analytical and Bioanalytical Chemistry

, Volume 410, Issue 28, pp 7337–7346 | Cite as

Dispersive solid-phase extraction based on MoS2/carbon dot composite combined with HPLC to determine brominated flame retardants in water

  • Sheying DongEmail author
  • Qi Lou
  • Guiqi Huang
  • Jingjun Guo
  • Xiaohong Wang
  • Tinglin Huang
Research Paper


The method based on the dispersive solid-phase extraction (DSPE) by novel molybdenum disulfide modified with carbon dot (MoS2/CD) composite combined with high-performance liquid chromatography (HPLC) was developed for the determination of three brominated flame retardants (BFRs), including tetrabromobisphenol A (TBBPA), tetrabromobisphenol A bisallylether (TBBPA-BAE), and tetrabromobisphenol A bis(2,3-dibromopropyl ether) (TBBPA-BDBPE). Owing to the stacked planar structure and large surface area of MoS2, a large number of CDs can be easily loaded on the surface of MoS2. Benefiting from good dispersing capability of MoS2, similar density with analytes, and hydrogen bonds between CDs and the target analytes, the CDs on the surface of MoS2 as sorbent for the DSPE procedure exhibited good extraction performance. Under optimal conditions, application of the developed method to analyze BFRs from real water samples resulted in good recovery values ranging from 80 to 91% with relative standard deviation (RSD) values lower than 6.5%. Limits of detection (LODs) were in the range of 0.01–0.06 μg/L. The result above showed that the method has potential for the extraction and detection of trace-level BFRs from real water sample.

Graphical abstract

Owing to the stacked planar structure and large surface area of MoS2, a large number of CDs can be easily loaded on the surface of MoS2. Benefiting from good dispersing capability of MoS2, similar density with analytes, and hydrogen bonds between CDs and the target analytes, the prepared MoS2/CD composites as sorbent for the DSPE procedure exhibited good extraction performance. Accordingly, the extraction yield of BFRs was improved, which was favorable to its accurate determination in sample.


Dispersive solid-phase extraction MoS2 Carbon dots Brominated flame retardants Determination 


Funding information

The authors appreciate the support from the Natural Science Foundation of Shaanxi Province (2017JM2038).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Sheying Dong
    • 1
    • 2
    Email author
  • Qi Lou
    • 2
  • Guiqi Huang
    • 2
  • Jingjun Guo
    • 1
  • Xiaohong Wang
    • 2
  • Tinglin Huang
    • 2
  1. 1.College of SciencesXi’an University of Architecture and TechnologyXi’anChina
  2. 2.School of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’anChina

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