## Abstract A detailed description for the doβitβyourself construction of a highβperformance thermodesorption GC injector (HPTI) is presented. The injector consists of a heated desorption chamber, a cooled loop for focusing the desorbed volatiles as well as a heating control for sample injection in
Multipurpose cold injector for high resolution gas chromatography
β Scribed by Saravalle, C. A. ;Munari, F. ;Trestianu, S.
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 711 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0935-6304
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β¦ Synopsis
The multipurpose cold injector described in this paper represents a solution for an universal sampling system for high resolution gas chromatography. The system is modular and is built around the Carlo Erba cold on-column injector provided with secondary cooling. An auxiliary module, easily fixable on the bottom of the on-column injector, creates a temperature programmable vaporizing chamber making the system also suitable for cold split-splitless injections or solvent venting prior to the sample transfer into the capillary. The system can be operated manually or in a fully automatic mode using the autosampler for cold on-column injections. The experimental data illustrate its benefits and limitations.
π SIMILAR VOLUMES
Capillary columns are widely used in gas chromatography (GC) because of their high resolving capacity. Split, splitless and on-column techniques are used to introduce the sample. A conventional vaporizing GC injector can easily be converted into a split/ splitless injector. However, it cannot be us
## Abstract The introduction of large sample volumes in capillary gas chromatography is becoming increasingly important in various application areas. Especially in the analysis of very dilute sample (__e.g__., environmental samples) and in coupled LCβGC, large volume sampling is extremely important