Gold Bulletin

, Volume 32, Issue 2, pp 52–58 | Cite as

Carrying Gold in Supercritical CO2

  • Jeremy D Glennon
  • Stephen J Harris
  • Andrew Walker
  • Conor C McSweeney
  • Mark O’Connell
Open Access


A series of fluorinated calixarene derivatives, with lower rim sulfur-donor atoms, were synthesized and studied for the sequestration of gold using supercritical fluid extraction. Following temperature and pressure optimization and using extracts collected in methyliso-butyl ketone, analysis by flame atomic absorption spectrometry reveals that Au(III) can be efficiently complexed and extracted by a novel calix[4]arene thiourea reagent in supercritical CO2.


Supercritical Fluid Supercritical Fluid Extraction Flame Atomic Absorption Spectrometry Flame Atomic Absorption Spectrometry Supercritical Fluid Chromatography 
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Copyright information

© World Gold Council 1999

Authors and Affiliations

  • Jeremy D Glennon
    • 1
  • Stephen J Harris
    • 1
  • Andrew Walker
    • 1
  • Conor C McSweeney
    • 1
  • Mark O’Connell
    • 1
  1. 1.Analytical Division, Department of ChemistryUniversity College CorkIreland

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