Summary
The authors report on quality tests for capillary columns, which are carried out in their laboratory since a few years. Besides the known test values such as separation number, polarity, adsorption, film thickness, is the significance of the acidity of a column investigated. The acidic or basic behaviour of a column can be determined with considerable sensitivity by a comparison of the peak areas obtained by analyzing the pair 2,6-dimethylaniline and 2,6-dimethylphenol. These test substances have been selected because they show similar retention characteristics on columns of any polarity, similar deviations from the neutral behaviour, lowest possible tendency to form hydrogen bonds, and practically the same response factors for flame ionization and thermal conductivity detectors. The test procedure is described.
This is a preview of subscription content, log in via an institution to check access.
Literatur
Kaiser, R., „Chromatographie in der Gasphase” Bd. II, Mannheim 1966, S. 44
Grob, K., Helv. Chim. Acta51, 718 (1968)
Grob, K., G. Grob, J. Chromat. Sci.7, 515 (1969)
Ettre, L. S., “Open Tubular Columns”, New York 1965, S. 94
Kaiser, R., „Chromatographie in der Gasphase” Bd. II, Mannheim 1966, S. 115
Grob, K., Voellmin, J. A., J. Chromat. Sci.,8, 218 (1970)
Cieplinsky, E. W., Anal. Chem.38, 928 (1966)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Grob, K., Grob, G. Ein Aciditätstest als Teil der Qualitätsprüfung für Kapillarsäulen. Chromatographia 4, 422–424 (1971). https://doi.org/10.1007/BF02270588
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02270588