Abstract
A gas mixture containing ppbv concentrations of volatile chlorinated and aromatic hydrocarbons was prepared in helium, nitrogen, or argon in a plastic (Nalophan) bag, in which it was found the mixture could be safely stored for several days. Samples of the mixture were subsequently analyzed by gas chromatography after direct cryotrapping in an empty metal U-tube. The cooling medium used was liquid nitrogen, liquid argon, or a dry ice-acetone slurry (197 K). The efficiency of cryotrapping in liquid nitrogen was over 90% when the aromatic hydrocarbon mixture was prepared in the helium matrix, but between 50 and 70% when it was prepared in nitrogen or argon, the recovery from the argon matrix being somewhat higher. The poor recovery in nitrogen at 77 K and argon at 87 K was explained by the reduced rate of diffusion to the wall owing to mist or aerosol formation. At 197 K condensation was negligible if the partial pressures were lower than the saturated vapor pressures.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Dewulf, H. Van Langenhove, Atm. Environ.31, 3291 (1997).
J. E. Pankow, J. High Resol. Chromatogr.6, 292 (1983).
B. Kolb, B. Liebhardt, L. S. Ettre Chromatographia21, 305 (1986).
P. L. Wylie, Chromatographia21, 251 (1986).
E. K. Etelätalo, O. Kostiainen, M. Kokko, J. Chromatogr. A787, 205 (1997).
A. Haunold, E. Rosenberg, M. Grasserbauer, Intern. J. Environ. Anal. Chem.,67, 157 (1997).
M. Holdren, S. Danhof, M. Grassi, J. Stets, B. Keigley, V. Woodruff, A. Scrugli Anal. Chem.70, 4836 (1998).
A. Hagman, S. Jacobsson, J. Chromatogr.448, 117 (1988).
X.-L. Cao, C. Nicholas-Hewitt, J. Chromatogr.627, 219 (1992).
J. W. Graydon, K. Grob J. Chromatogr.254, 265 (1983).
N. Moschonas, S. Glavas, J. Chromatogr. A790, 117 (1997).
P. Matu-ka, M. Koval, W. Seiler, J. High Resol. Chromatogr.9, 577 (1986).
W. A. McClenny, J. D. Pleil, G. F. Evans, K. D. Oliver, M. W. Holdren, W. T. Winberry, J. Air Waste Manag. Assoc.41, 1308 (1991).
A. Zlatkis, V. Pretorius (Editors), Preparative Gas Chromatography, Wiley-Interscience, New York, 1971, pp. 147–157.
R. E. Kaiser, Anal. Chem.45, 965 (1973).
W. C. Li, A. R. J. Andrews, J. High Resol. Chromatogr.19, 492 (1996).
A. J. Borgerding, C. W. Wilkerson Jr. Anal. Chem.68, 2874 (1996).
M. A. Klemp, M. L. Akard, R. D. Sacks, Anal. Chem.65, 2516 (1993).
M. Klemp, A. Peters, R. Sacks, Environ. Sci. Technol.28, 369A (1994).
J. Dewulf, D. Ponnet, H. Van Langenhove, Intern. J. Environ. Anal. Chem.62, 289 (1996).
J. Dewulf, D. Drijvers, H. Van Langenhove, Atm. Environ.29, 323 (1995).
D. R. Stull, Ind. Eng. Chem.39, 517 (1947).
D. L. S. Brown, J. A. Connor, C. P. Demain, M. L. Lueng, J. A. Martinho-Simoes, H. A. Skinner, J. Organomet. Chem.142, 131 (1977).
W. Hessler, W. Lichtenstein, Wissenschaftliche Zeitschrift der Wilhelm-Pick Universität, Naturwiss. Reihe, Rostock35, 27 (1986).
J. O. Hirschfelder, C. F. Curtiss, R. B. Bird, Molecular Theory of Gases and Liquids, John Wiley and Sons, New York, 1954.
R. P. Schwarzenbach, P. M. Gschwend, D. M. Imboden, Environmental Organic Chemistry, John Wiley & Sons, New York, 1993.
E. D. Fuller, P. D. Schettler, J. C Giddings, Ind. Eng. Chem.58, 19 (1966).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Görgényi, M., Dewulf, J. & Van Langenhove, H. Matrix effect in the cryotrapping of gas samples in the ppbv range. Chromatographia 51, 461–466 (2000). https://doi.org/10.1007/BF02490485
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02490485