Development of a polymer-coated stationary phase with improved chemical stability in alkaline mobile phases

An endcapped stationary phase is prepared by thermal immobilization of poly(methyltetradecylsiloxane) (PMTDS) onto a doubly zirconized silica support followed by endcapping using a mixture of hexamethyldisilazane and trimethylchlorosilane. The preparation of the Si-Zr(PMTDS)ec phase shows good repea...

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Bibliographic Details
Published in:Journal of separation science 2008-04, Vol.31 (6-7), p.953-960
Main Authors: Faria, Anizio M, Silva, César R, Collins, Carol H, Jardim, Isabel C.S.F
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Endcapping
Exact sciences and technology
Other chromatographic methods
PMTDS
Stability
Stationary phases
Zirconized silica
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Summary:An endcapped stationary phase is prepared by thermal immobilization of poly(methyltetradecylsiloxane) (PMTDS) onto a doubly zirconized silica support followed by endcapping using a mixture of hexamethyldisilazane and trimethylchlorosilane. The preparation of the Si-Zr(PMTDS)ec phase shows good repeatability with RSD
ISSN:1615-9306
1615-9314
DOI:10.1002/jssc.200700607