Characterization of a solventless injection interface for supercritical fluid chromatography

2000 ◽  
Vol 51 (11-12) ◽  
pp. 747-755 ◽  
Author(s):  
J. Y. Gao ◽  
C. E. Kibbey
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Solventless Injection

Packed-column supercritical fluid chromatography with splitless flame ionization detection

2004 ◽  
Vol 82 (3) ◽  
pp. 479-482 ◽  
Author(s):  
Kevin B Thurbide ◽  
Shawn Gilbert
Keyword(s):  
Supercritical Fluid ◽  
Supercritical Fluid Chromatography ◽  
Packed Column ◽  
Flame Ionization Detector ◽  
Gas Flows ◽  
Ionization Detector ◽  
Flow Rates ◽  
Flame Ionization ◽  
Stable Flame

The design and characterization of a flame ionization detector (FID) that is compatible with the high flow rates of packed-column supercritical fluid chromatography (pSFC) is presented. The modified FID uses a large quartz burner (4.0 mm i.d.) in place of the conventional burner (0.4 mm i.d.) and operates a stable flame in the presence of gas flows tested up to nearly 3000 mL/min. This modification allows the full flow of effluent from a pSFC column (i.e., splitless mode) to be directed into the FID. Results demonstrate that the modified FID yields response that is within a factor of 3 to that of a commercial FID. The attributes of the modified detector indicate that this approach could be a reliable and relatively simple means of achieving a splitless pSFC-FID system.Key words: supercritical fluid chromatography, packed column, splitless, flame ionization detector.

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