ISSN:
1040-7685
Keywords:
Enantioselective GC
;
2,3-di-O-acetyl-6-O-t-butyldimethylsilyl-β-cyclodextrin
;
diluting stationary phases (PS-086, OV-1701)
;
retention parameters
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The results of a series of experiments concerning the GC enantioseparation of some racemates on columns coated with 2,3-di-O-acetyl-6-O-t-butyldimethylsilyl-β-cyclodextrin diluted in two different polysiloxanes (PS-086 and OV-1701) are reported. The investigation is centered on the influence of the diluting phase on the separations of the racemates investigated [δ-heptalactone, linalyl acetate, and an homologous series of cis-2-(2-alkyl-cyclopropyl)-ethanol (alkyl from ethyl to heptyl)] because one of the two polysiloxanes separated them, whereas the other did not. Column retention and efficiency characteristics were investigated as a function of the diluting phase. Retention increase (RI) and Gibbs-Helmholtz parameter (ΔR,SΔG) were determined for each of the above racemates, analyzed by different mixtures of the CDD selector with the two diluting phases. © 1995 John Wiley & Sons, Inc.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mcs.1220070405
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