| Autor: |
Schneider, John F., Demirgian, Jack C., Stickler, Joseph C. |
| Zdroj: |
Journal of Chromatographic Science; August 1986, Vol. 24 Issue: 8 p330-330, 1p |
| Abstrakt: |
Gas chromatography interfaced with Fourier transform infrared spectrometry (GC/FTIR), a technique of rapidly growing importance in analytical chemistry, is capable of providing IR spectra for each of the components of a complex mixture. Currently, two GC interfaces are commercially available. The light-pipe interface uses a gas flow cell to obtain IR spectra of the components of the GC effluent. The other interface, GC/matrix-isolation/IR (GC/MI/IR) uses matrix isolation to trap the GC effluent prior to measuring the IR spectra of each component. In this paper, the GC/MI/IR interface is compared with the light-pipe GC/IR interface. Representative spectra of a test mixture run on instruments using both interfacing methods are presented. The advantages and disadvantages of both methods are discussed. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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