Immobilisation of Chirasil-Val on glass capillaries

Autor:	G. Lai, G. J. Nicholson, Ernst Bayer
Rok vydání:	1988
Předmět:	chemistry.chemical_compound Chromatography Silicone Chirasil-Val Chemistry Stationary phase Organic Chemistry Clinical Biochemistry Dicumyl peroxide Thermal treatment Biochemistry Analytical Chemistry Thermal methods
Zdroj:	Chromatographia. 26:229-233
ISSN:	1612-1112 0009-5893
DOI:	10.1007/bf02268157
Popis:	Immobilisation methods of the chiral silicone stationary phase Chirasil-L-Val have been studied. In addition to the standard techniques of radical-induced immobilisation with dicumyl peroxide and azo tert-butane, immobilisation was solely achieved by thermal treatment: conditioning at low flow-rates or under stop-flow conditions led to unexpectedly high immobilisation despite mild temperatures. The presence of water vapor in the carrier gas accelerated the immobilisation process. While up to 75% immobilisation was attainable with both ATB and thermal methods, immobilisation with DCUP did not exceed 50%, despite relatively high DCUP concentrations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::88b8aa9a87d610992eb3bef895a66cf6 https://doi.org/10.1007/bf02268157 Zobrazit plný text záznamu Full text from SpringerLink