## Abstract The chromatographic properties of potassium fluoride as an additive to the polyethylene glycol stationary phase were investigated. This unique base in organic chemistry was shown to succeed in yielding good results for the analysis of polar compounds, including the primary amines. Glass
The use of glass capillary columns for the analysis of polar natural products
✍ Scribed by König, W. A. ;Günther, W.
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 385 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
Two published procedures for glass capillary column production are applied to produce capillaries for chromatography of polar natural compounds. Soda lime glass capillaries, after leaching with aqueous HCL, are either treated with colloidal silicic acid or with barium carbonate and coated with either Silar 7CP or SE 52. A test mixture as well as polar carbohydrate and peptide mixtures are chromatographed on the different columns and their chromatographic properties are evaluated. Combined capillary gas chromatography‐electron impact and chemical ionization mass spectrometry are used for identification of the peptide sequence.
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Complex organic mixtures, such as coal liquefaction and oil shale products and by-products, are comprised of hundreds or thousands of individual components. State-of-the-art high resolution gas chromatography does not always provide sufficient resolution to allow accurate quantitation or identificat
## Abstract A detailed method for the routine preparation of glass capillary columns is presented. The method consists of coating a glass tube with quartz powder prior to pulling the tube into a capillary. The inner surface of the capillary consists of an even distribution of quartz particles fused