ISSN:
1040-7685
Keywords:
crown ether substituted polysiloxanes
;
capillary columns
;
stationary phases
;
phenols
;
open tubular columns
;
capillary column gas chromatography
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Two new crown ether substituted polysiloxanes, 4-propylbenzo-15-crown-5polysiloxane(PSO-B-15C5) and propyloxydibenzo-14-crown-4polysiloxane (PSO-DB-14C4), were prepared and used as stationary phases coated on fused-silica open tubular columns. The chromatographic characteristics, including column efficiency, polarity, phase transition temperature, allowable operating temperature range and selectivity, were studied. A unique selectivity of these columns was found for the separation of all six dimethylphenol isomers. The separation mechanism is discussed.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mcs.1220030205
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