Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Supercritical Fluid Extraction of Trace Metals from Solid and Liquid Materials for Analytical Application
C. M. WAI
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JOURNAL FREE ACCESS

1995 Volume 11 Issue 1 Pages 165-167

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Abstract

etal ions in solid and liquid materials can be extracted by supercritical CO2 containing a suitable ligand. Bis(trifluoroethyl)dithiocarbamate is an effective ligand for the extraction of transition metals and non-metals in supercritical CO2. Fluorinated β-diketones and tributyl phosphate in supercritical CO2 exhibit a positive synergistic extraction for the lanthanides and actinides from solid and liquid samples. Triazole containing crown ethers can also be used for selective extraction of heavy metals in supercritical CO2.

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© The Japan Society for Analytical Chemistry
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