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Metal extraction from solid matrices using a two-surfactant microemulsion in neat supercritical carbon dioxide

Wang, J. S.; Chiu, K.

Mikrochimica acta. VOL 167; NUMBER 1-2, ; 2009, 61-65 -- Springer Science + Business Media (pages 61-65) -- 2009

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  • Title:
    Metal extraction from solid matrices using a two-surfactant microemulsion in neat supercritical carbon dioxide
  • Author: Wang, J. S.;
    Chiu, K.
  • Found In: Mikrochimica acta. VOL 167; NUMBER 1-2, ; 2009, 61-65
  • Journal Title: Mikrochimica acta.
  • Subjects: Biotechnology; Chemistry; Pharmaceutical Chemistry; LCC: QD; Dewey: 543.0813
  • Publication Details: Springer Science + Business Media
  • Language: English
  • Abstract: Heavy metal ions including Co(II), Cd(II), Cu(II), Pb(II), Zn(II), Eu(III), La(III), and Sr(II) were extracted from solid matrices by using a water-in-CO2 microemulsion composed of sodium bis-(2-ethylhexyl) sulfosuccinate and a nontoxic perfluoropolyether phosphate in neat supercritical carbon dioxide. The extraction efficiency exceeds 90% according to ICP-AES analysis. The method significantly reduces the amount of liquid waste generated since only a small amount of water and no modifier are needed in contrast to the conventional washing or acid leaching processes.
  • Identifier: Journal ISSN: 0026-3672
  • Publication Date: 2009
  • Physical Description: Physical
  • Accrual Information: Monthly
  • Shelfmark(s): 5758.452000
  • UIN: ETOCRN260630074

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