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Progress in Chemistry 2001, Vol. 13 Issue (04): 310- Previous Articles   Next Articles

• Review •

Research Progress of Supercritical Carbon Dioxide Fluid Extraction of Heavy Metals

Wen Zhen1;Dang Zhi3;Yu Deshun2,1;Shang Aian1   

  1. 1.State Key Lab of Environment Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences, Guiyang 550002, China; 2.Department of Applied Chemistry, The South China University of Technology, Guangzhou 540641, China; 3. Research Center for SFE Technology, Institute of Geochemistry, Chinese Acdamy of Sciences, Guiyang 550002, China
  • Received: Revised: Online: Published:
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The Combination of supercritical carbon dioxide fluid extraction and complexing action is a new way to extract heavy metals from different media, especially environmental samples. Recent studies have demonstrated the feasibility of recovering heavy metals by insituchelation using a SC2CO2 mobile phase. Development about extraction of heavy metals by SC2CO2 fluid is reviewed, and factors affecting the extraction are discussed. Finally, a more broad application range is prospected with an indepth research of supercritical carbon dioxide fluid extraction of heavy metals.
Key words: supercritical carbon dioxide fluid extraction, chelation, heavy metals, environmental samples

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