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Low flow rate modifier addition in packed capillary column supercritical fluid chromatography

✍ Scribed by Ibañez, Elena ;Li, Wenbao ;Malik, Abdul ;Lee, Milton L.

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
490 KB
Volume
18
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

A new method to accurately deliver small amounts (0.5 to 20 mol%) of modifier into CO~2~ was used to study the effects of three different modifiers (methanol, water, and formic acid) in packed capillary column SFC. The method allows the use of different modifiers, with minimal instrument modification. The effects of the different modifiers at different concentrations on retention and peak shape are shown by analyzing a polarity test mixture and a sample of free fatty acids.

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