Rapid sealing of glass capillary columns for static coating
โ Scribed by Spagone, C. ;Fanelli, R.
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 87 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0935-6304
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## Time (mins) chromatogram of an extract of a 35 m3 air sample taken near a photocopying machine. The method described here for the measurement of TNF in air is fast and quantitative and will allow TNF to be measured at levels down to 0.1 pglm3, based on a 100 I air sample. ## References [I]
Judging by the number of manuscripts recently submitted to the journal on the static coating of capillary columns, it would seem that this method is gaining in popularity. The fact that these communications contain similar technicaldetails may give the reader the impression of unnecessary repetition
Thecoating speed upon staticcoating of glasscapillarycolumns was evaluated in terms of inner diameter and length of the column, viscosity and pressure of solvent vapor, etc. From the equation obtained it can be shown that a smaller diameter of a microbore column restricts solvent vapor transfer to t