A new principle and method have been developed for producing a high-efficiency WCOT column by forming a polyimide capillary tube of l-5 pm wall thickness inside a supporting glass capillary (tube-in-tube system). This polyimide layer is chemically resistant, heat-proof (up to 450Β°C) and mechanically
β¦ LIBER β¦
Nylon Capillary Columns for use in Gas-Liquid Chromatography
β Scribed by SCOTT, R. P. W.
- Book ID
- 109601676
- Publisher
- Nature Publishing Group
- Year
- 1959
- Tongue
- English
- Weight
- 212 KB
- Volume
- 183
- Category
- Article
- ISSN
- 0028-0836
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The extract was filtered and the filtrate diluted with an equal volume of water. 50 ml strong solution of lead subacetate was added and the mixture centrifuged after 5 minutes. Excess lead was precipitated with 10% disodium hydrogen phosphate and the mixture again centrifuged. The supernatant was su