Purity of carbon dioxide as limiting factor in trace-level analysis by on-line supercritical fluid extraction/capillary gas chromatography
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The usefulness of several grades of carbon dioxide for online supercritical fluid extraction/capillary gas chromatography has been studied. If trace-level work has to be performed, no single grade can be recommended for all modes of detection studied. Good-quality carbon dioxide is available for use with flame ionization and thermionic detectors. With electron-capture detection, however, distinct problems still exist.
Key WordsGas chromatography Supercritical fluid extraction GC detectors Purity of gases
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- B. W. Wright, S. R. Frye, D. G. McMinn, R. D. Smith, Anal. Chem.,59, 640 (1987).Google Scholar
- S. B. Hawthorne, D. J. Miller, J. Chromatogr. Sci.,24, 258 (1986).Google Scholar
- S. B. Hawthorne, D. J. Miller, M. S. Krieger, Fres. Z. Anal. Chem.,330, 211 (1988).Google Scholar
- R. W. Vannoort, J.-P. Chervet, H. Lingeman, G. J. de Jong, U. A. Th. Brinkman, J. Chromatogr.,550, 45 (1990).Google Scholar