Summary
Extraction with supercritical CO2 is a versatile method for sample clean-up and trace enrichment. The off-line coupling of SFE and HPLC is used to determine various explosives in debris as well as pesticides in soil. In food analysis the metod could be applied to determine cholesterol in noodles quantitatively. Correlations between the retention in RP chromatography and required extraction conditions could the established. The higher the organic modifier concentration in the eluent has to be, the smoother the extraction conditions required. With the non-volatile solutes studied, extraction temperature had no influence on extraction yield and speed. On-line coupling of SFE and capillary SFC is a very convenient and sensitive method for the determination of polymer additives. The coupling device described can also be used for “solventless” injection in capillary SFC.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Zosel, Angew. Chem.90, 748 (1978).
G.M. Schneider, E. Stahl, G. Wilke, eds., Extraction with Supercritical and Raffination, Springer, Heidelberg, 1987.
E. Stahl, K.-W. Quirin, D. Gerard, Condensed Gases for Extraction and Practice, Springer, Heidelberg, 1987.
M. McHugh, V. Krukonis, Supercritical Fluid Extractions Principles and Practice, Butterworth, Boston, 1986.
E. Stahl, W. Schuilz, Chem. Ing. Techn.48, 773 (1976).
E. Stahl, W. Schilz, E. Schütz, E. Willig, Angew. Chem.90, 778 (1978).
E. Stahl, W. Schilz, Fres. Z. Anal. Chem.282, 99 (1983).
G.G. Hoyer, Chem. Techn.15, 283 (1985).
W. Roselius, O. Vitzthum, P. Hubert, German. Pat. 2043537 (1975).
K.-W. Quirin, GIT Suppl.3, 65 (1988).
B.W. Wright, C.W. Wright, R.W. Gale, D.D. Smith, Anal. Chem.59, 38 (1987).
S.B. Hawthorne, D.J. Miller, Anal. Chem.59, 1705 (1987).
S.B. Hawthorne, M.S. Krieger, D.J., Miller, Anal. Chem.61, 736 (1989).
K. Anton, R. Menes, H.M. Widmer, Chromatographia26, 221 (1988).
H. Engelhardt, A. Groß, J. HRC11, 726 (1988).
M.EP. McNally, J.R. Wheeler, Chromatographia21, 3 (1986).
M.E.P. McNally, J.R. Wheeler, J. Chromatogr.447, 53 (1988).
K. Schäfer, W. Bauman, Fres. Z. Anal. Chem.332, 122 (1988).
R.M. Campbell, D.M. Meunier, H.J. Cortes, J. Microcol. Sep.11, 302 (1989).
S. Schmidt, L. Blomberg, T. Wännman, Chromatographia28, 400 (1989).
M.R. Andersen, J.T. Swanson, N.L. Porter, B.E. Richter, J. Chromatogr. Sci.27, 371 (1989).
G. Schomburg, W. Röder, J. HRC12, 218 (1989).
M.L. Lee, B. Xu, E.C. Huang, N.M. Djordjevic, H.-C. Chang, K.E. Markides, J. Microcol. Sep.1, 7 (1989).
J. Meiser, Master Thesis, Saarbrücken 1991.
J.J. Lzubryt, M.N. Myers, J.J. Giddings, J. Phys. Chem.74, 4260 (1970).
M. Dresselhaus, I. Acker, Getreide, Mehl, Brot28, 137 (1974).
C.P. Ong, H.M. Ong, S.E.Y. Li, H.K. Lee, J. Microol. Sep.2, 69 (1990).
B.E. Richter, D.E. Knowles, M.R. Andersen, N.L. Porter, E.R. Campbell, D.W. Later, J. HRC11, 29 (1989).
J. Köhler, A. Rose, G. Schomburg, J. HRC11, 191 (1989).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Engelhardt, H., Zapp, J. & Kolla, P. Sample preparation by supercritical fluid extraction in environmental food and polymer analysis. Chromatographia 32, 527–537 (1991). https://doi.org/10.1007/BF02327898
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02327898