Selenium speciation in tea by dispersive liquid-liquid microextraction coupled to high-performance liquid chromatography after derivatization with 2,3-diaminonaphthalene.

@article{Zhou2015SeleniumSI,
  title={Selenium speciation in tea by dispersive liquid-liquid microextraction coupled to high-performance liquid chromatography after derivatization with 2,3-diaminonaphthalene.},
  author={Qingxiang Zhou and Man Kit Lei and Jing Li and Mengyun Wang and Danchen Zhao and An Xing and Kuifu Zhao},
  journal={Journal of separation science},
  year={2015},
  volume={38 9},
  pages={
          1577-83
        }
}
Selenium is an important element for human health, and it is present in many natural drinks and foods. Present study described a new method using dispersive liquid-liquid microextraction prior to high-performance liquid chromatography with a UV variable wavelength detector for the determination of the total selenium, Se(IV), Se(VI), and total organoselenium in tea samples. In the procedure, 2,3-diaminonaphthalene was used as the chelating reagent, 400 μL acetonitrile was used as the disperser… CONTINUE READING
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