Separation and quantitative determination of the cerium group lanthanides by gas-liquid chromatography |
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Authors: | Burgett C A Fritz J S |
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Institution: | Ames Laboratory, USAEC, Department of Chemistry Iowa State University, Ames, Iowa, U.S.A. |
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Abstract: | A gas chromatographic method is reported for the separation and subsequent quantitative determination of the cerium group lanthanides. The lanthanides (RE) are synergistically extracted from aqueous solution with the polyfluorinated beta-diketone 1,1,1,2,2,6,6,7,7,7-decafluoro-3,5-heptanedione, H(FHD), as ligand, and di-n-butylsulphoxide, DBSO, as neutral donor. The composition of the extracted species is reported to be RE(FHD)(3) .2DBSO. Thermogravimetric analysis of the complexes is reported. Analytical curves were prepared and found to be usable over the range of 0.1-10 mug of metal. Individual lanthanides were determined with 99.0 % recovery with a relative mean deviation of +/-2.0%. Mixture of lanthanides were analyzed with 101.2% recovery with a relative mean deviation of +/-2.2%. |
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Keywords: | Present address Hewlett—Packard Avondale Division Route 41 and Starr Road Avondale Pennsylvania 19311 U S A Correspondence should be sent to this address |
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