ISSN:
1612-1112
Keywords:
Capillary supercritical fluid chromatography
;
Piston pump
;
On-line mixed mobile phases
;
Antioxidants, fluorescent whitening agents, alkylarylethoxylate alcohols
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Mixed mobile phase delivery for CSFC is served by a system previously designed for packed column SFC, where a back-pressure regulator controls pressure programming. Piston pumps deliver separate flows of carbon dioxide and modifier (2-propanol). The on-line mixed phase with the injected sample is split to the capillary column. Compared to a commercially available CSFC instrument the system shows no significant differences in resolution. Applications show the advantages of using modifiers in CSFC, such as separations of polar, ionic and high molecular weight compounds, influences on selectivity and shorter retention times.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02268156
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