A polar glass capillary column for residue work
β Scribed by Rinderknecht, F. ;Wenger, B.
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 248 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
Polydiethylene glycol adipate (DEGA) has been successfully used as stationary phase for residue analysis by glass capillary gas chromatography. A specially stabilized version of the phase yields a good polar column which is stable up to 25OOC when used in temperature programmed cycles. The paper lists 90 pesticides that have been successfully chromatographed in ng quantities on a DEGA column.
π SIMILAR VOLUMES
## 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 coat
## Abstract Static ammonia etching has been used to effect regular surface roughening of glass capillaries. Following such treatment, polar phases could be coated after persilylation with varioussilylation agents such as hexamethylβ, tetramethyldiphenylβ, and tetraβ phenyldimethyldisilazane, respec