Determination of Zinc Ions in Environmental Samples by Dispersive Liquid- Liquid Micro Extraction and Atomic Absorption Spectroscopy



In this work preconcentration of the Zn ions was investigated in water sample by Dispersive liquid- liquid micro extraction (DLLME) using chloroform as an extraction solvent, methanol as a disperser solvent and 8-Hydroxyquinoline as a chelating agent. The determination of extracted ions was done by graphite furnace atomic absorption spectrometry. The influence of various analytical parameters including pH, extraction and disperser solvent type and volume and concentration of the chelating agent on the extraction efficiency of analyses was investigated. After extraction, the enrichment factor was 26 and the detection limit of the method was 0.0033 µg l-1 and the relative standard deviations (R.S.D) for five determinations of 1 ng/ml Zn were 7.41%. 


  1. Saracoglu S, Saygi KO, Uluozlu OD, Tuzen M, Soylak M. 2007, Food Chem, 105:280ââ‚‌“285.
  2. Ferreira HS, dos Santos WNL, Fiuza RP, Nóbrega JA, Ferreira SLC, 2007, Microchem J 87:128ââ‚‌“131.
  3. Uluozlu OD, Tuzen M, Mendil D, Soylak M, 2007, Food Chem, 104:835ââ‚‌“840.
  4. Mcdowell LR, 1992, Minerals in Animal and Human Nutrition, Academic, New York.
  5. Solomons NW, 1992, Absorption and Malabsorption of Mineral Nutrients. Alan R Liss, New York.
  6. Zhu XB, Chang XJ, Cui YM, Zou XJ, Yang D, Hu Z, 2007, Microchem J, 86:189ââ‚‌“194.
  7. Scherz H, Kirchhoff E, 2006, J Food Comp Anal, 19:420ââ‚‌“433.
  8. Shokrollahi A, Shamsipur M, Jalali F, Nomani H, 2009, Cent. Eur. J. Chem, 7: 938ââ‚‌“944.
  9. Zaporozhets OA, Tsyukalo LE, 2004, Journal of Analytical Chemistry, 59: 434ââ‚‌“439.
  10. Arvand M, Pourhabib A, Afshari A, Bagherinia M, 2008, Journal of Analytical Chemistry, 63: 954ââ‚‌“959.
  11. Farajzadeh MA, Bahram M, Ghorbani Mehr B, JÖnsson JÃ…, 2008, Talanta, 75: 832ââ‚‌“840.
  12. Zeini Jahromi E, Bidari A, Assadi Y, Milani Hosseini MR, 2007, Analytica Chimica Acta, 585: 305ââ‚‌“311.
  13. Mohammadi SZ, Afzali D, Taher MA, Baghelani YM, 200
  14. , Talanta, 80: 875ââ‚‌“879.
  15. Pan L, Qin Y.C, Hu B, Jiang Z.C, 2007, Chem. Res. Chin. Univ, 23: 399ââ‚‌“403.
  16. Afzali D, Taher MA, Mostafavi A, 2005, Talanta, 65: 476ââ‚‌“480.
  17. Shokrollahi A, Ghaedi M, Hossaini O, Khanjari N, Soylak A, 2008, Journal of Hazardous Materials, 160: 435ââ‚‌“440.
  18. Moghimi A, 2008, Journal of the Chinese Chemical Society, 55: 369-376.
  • Receive Date: 08 January 2013
  • Revise Date: 19 August 2022
  • Accept Date: 29 October 2018
  • First Publish Date: 29 October 2018