High-resolution trimer acid-coated glass capillary columns
β Scribed by L. Zoccolillo; A. Liberti; G.C. Goretti
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 366 KB
- Volume
- 43
- Category
- Article
- ISSN
- 1873-3778
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π SIMILAR VOLUMES
Various procedures to obtain high resolution glass capillary columns are described. By roughening the glass surface either with a layer of carbon or with polymerised material, a stationary phase of any polarity can bb successfully coated. Results obtained with Carbowax, trimer acid and squalane colu
## Abstract A rapid and specific procedure is described for the resolution of nine steroids present in conjugated estrogen preparations. Resolution is achieved on a short glass capillary column coated with Silar 10C after dual derivatization to oximeβtrimethylsilyl ethers.
## Abstract This paper describes the results of a study on the deactivation of the surface of glass capillary columns by high temperature silylation (HTS). The different steps, leaching, washing, dehydration and HTS were optimized. A practical procedure yielding a high percentage of very good colum