Rapid separation of isomeric Xylenes on a short liquid crystal-coated glass capillary in the supercooled temperature range
✍ Scribed by Kraus, G. ;Schierhorn, M.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 124 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0935-6304
No coin nor oath required. For personal study only.
✦ Synopsis
The column was then coated with a relatively non-polar stationary phase, OV-101, using the static coating method [q.Atest mixture was injected under similar conditions. The result is shown in Figure 2. The absence of peak tailing is evident.
The critical surface tension of a smooth pyrocarbon surface has been found to be 34 dyne cm-' [6]. Such surfaces can therefore only be used for stationary phases with a surface tension of this value or less. However, by appropriately roughening the surface priorto depositing the pyrocarbon even the most polar stationary phases-e.g. OV-275-may be successfully coated. This will be reported on later.