A new simplified method was developed for the preparation of immobilized stationary phase fused silica capillary columns coated with OV-1-vinyl, SE-54, and OV-1701 -vinyl. This methodology includes the application of the moderately polar stationary phase OV-1701 -vinyl as a surface deactivation agen
Polysiloxane deactivated fused silica capillaries containing immobilized stationary phases
β Scribed by Moseley, M. A. ;Pellizzari, E. D.
- Book ID
- 102347006
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 307 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
Abstract
This article describes a method of preparing immobilized stationary phases which has arisen from the authors' work on polysiloxane deactivation of fused silica capillaries. Although acid treatment is often omitted with fused silica capillaries, there are good reasons for hydrothermal treatment of this column material. Use of Grob's peroxide method gave immobilized 0.25 ΞΌm films of SEβ54; lowering of the immobilization temperature permitted immobilization of 0.1 ΞΌm films of the same phase.
π SIMILAR VOLUMES
## Abstract A new polar polysiloxane stationary phase for capillary column gas chromatography containing 4β(methylsulfonyl)phenyl substitution was synthesized and compared to a cyanophenylpolysiloxane, OVβ225. The sulfonylphenylpolysiloxane phase was useful and stable over a wide temperature range
A new mixed crosslinking agent composed of dicumyl peroxide and tetra(methylvinyl)cyclotetrasiloxane was used to prepare fused silica capillary columns with in situ crosslinked stationary phases including PEG-SOM, SE-54, and OV-1. These columns proved to have good thermostability and inertness. As e