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Direct coupling of capillary supercritical fluid chromatography with double-focusing high resolution mass spectrometry

✍ Scribed by Bücherl, T. ;Eschler, M. ;Gruner, A. ;Palibroda, N. ;Wolff, E.

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
560 KB
Volume
17
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

An integral restrictor interface with jet separator for coupling capillary column supercritical fluid extraction – supercritical fluid chromatography with high resolution mass spectrometry (SFE‐SFC‐MS) has been built and used for the analysis of a fatty acid ester, and of polymer additives with a wide range of masses. The mobile phase used was supercritical carbon dioxide; a flame ionization detector (FID) was used in parallel with the mass spectrometer. Different SFC‐MS interface operating conditions, e.g. temperature, restrictor position, flow rate, and sample transfer conditions were optimized to obtain good sensitivity and separation for these applications. In addition, the sensitivity of measurements performed with the direct insertion probe and by SFC‐MS interface have been compared.

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