INVESTIGATION OF THE ROLE OF THE CARRIER GAS IN CAPILLARY GAS-SOLID CHROMATOGRAPHY

Citation
Vg. Berezkin et al., INVESTIGATION OF THE ROLE OF THE CARRIER GAS IN CAPILLARY GAS-SOLID CHROMATOGRAPHY, Russian chemical bulletin, 45(3), 1996, pp. 587-593
Citations number
21
Categorie Soggetti
Chemistry
Journal title
ISSN journal
10665285
Volume
45
Issue
3
Year of publication
1996
Pages
587 - 593
Database
ISI
SICI code
1066-5285(1996)45:3<587:IOTROT>2.0.ZU;2-G
Abstract
Nonideal interactions of the sorbate and the carrier gas and adsorptio n of the sorbate an the adsorbent surface in capillary gas-solid chrom atography were studied. Chromatographic retention was found to be larg ely determined by adsorption processes. With respect to the retention coefficients (capacity factors) of a sorbate (k) with different carrie r gases (P-1 and P-2), the correlation relationship k(P-2) = A . k(P-1 ) + B (A, B are parameters of the equation) is closely obeyed. The adv antages of carbon dioxide as the carrier gas were analyzed; the use of carbon dioxide allows the efficiency of the column to be enhanced.