The activity of fused silica capillary tubing has been shown to vary considerably, which severely influences the reproducibility of column deactivation and inertness. Methods for producing a reproducible, high activity surface with maximum hydroxylation by various hydrothermal treatments were evalua
Fused silica substrate effects on capillary column performance
β Scribed by Broske, Alan D.
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 311 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
Abstract
The effect of a pretreatment step on the polarity of fused silica capillary tubing prior to coating was evaluated. Columns were tested prior to and after coating with a 50% phenl stationary phase, and the chromatographic findings were compared. The results confirmed that the polarity of the fused silica substrate affects the inertness and reproducibility of the final coated columns.
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