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Determination of trace levels of selenium in natural water, agriculture soil and food samples by vortex assisted liquid-liquid microextraction method: Multivariate techniques TEXT SIZE: A A A
A green vortex assisted based liquid-liquid microextraction (VA-LLME) method was developed for preconcentration of selenium. Ammonium pyrrolidine dithiocarbamate (APDC) was used to form a hydrophobic complex with selenium in natural water, agricultural soil and food samples by GFAAS. Whereas Triton X-114, a nonionic surfactant and 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid were used for Se extraction as a dispersing medium. The conical flasks contents were shack on a vortex mixer to increase the extraction efficiency. Multivariate techniques were used to evaluate extraction parameters; pH, vortex time, APDC amount, volume of ionic liquid and Triton X-114 and centrifugation rate on the recovery of Se. The central composite design (CCD) was used for further optimization of the essential extraction parameters. The enhancement factor and limit of detection were obtained as 98.7 and 0.07 mu g L-1. The certified reference materials was used for accuracy of method and the related standard deviation was found to be 3.51%. The resulted data indicated that concentrations of Se in all types of water samples were below the permissible limit recommended by WHO.

Publication name

 FOOD CHEMISTRY Volume: 344 Article Number: 128706 DOI: 10.1016/j.foodchem.2020.128706 Published: MAY 15 2021


 Ali, Jamshed; Tuzen, Mustafa; Feng, Xinbin; Kazi, Tasneem G.

Corresponding author(s) 

 Tuzen, Mustafa
 -Tokat Gaziosmanpasa Univ, Fac Sci & Arts, Chem Dept, TR-60250 Tokat, Turkey.
 -King Fahd Univ Petr & Minerals, Ctr Environm & Water, Res Inst, Dhahran 31261, Saudi Arabia.

Author(s) from IGCAS   Ali, Jamshed; Feng, Xinbin

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