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New Liquid Phases for the Gas Chromatographic Separation of Strong Bases on Capillary Columns


Grob, K (1964). New Liquid Phases for the Gas Chromatographic Separation of Strong Bases on Capillary Columns. Journal of Chromatographic Science, 2(2):80-82.

Abstract

The current practice of pretreating the solid support with free alkali to increase separation efficiency for basic compounds proved to be unsuitable for capillary columns. Instead of this, homogenous organic materials of high base strength are required. We found polyethylene imine (PEI) and polypropylene imine (PPI) to be very efficient as liquid phases of capillary columns for the separation of bases. The preparation of polymers is mentioned. Silanization or acetylation of the free hydroxyl groups of carbowax-type substrate makes them more suitable for use as liquid phases in capillary columns

Abstract

The current practice of pretreating the solid support with free alkali to increase separation efficiency for basic compounds proved to be unsuitable for capillary columns. Instead of this, homogenous organic materials of high base strength are required. We found polyethylene imine (PEI) and polypropylene imine (PPI) to be very efficient as liquid phases of capillary columns for the separation of bases. The preparation of polymers is mentioned. Silanization or acetylation of the free hydroxyl groups of carbowax-type substrate makes them more suitable for use as liquid phases in capillary columns

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:Unspecified
Language:English
Date:1 February 1964
Deposited On:18 Oct 2018 13:07
Last Modified:20 Oct 2018 07:08
Publisher:Preston Publications
ISSN:0021-9665
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1093/chromsci/2.2.80
Related URLs:https://www.swissbib.ch/Search/Results?lookfor=nationallicenceoxford101093chromsci2280 (Library Catalogue)

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