Minimum analysis time in capillary gas chromatography vacuum-versus atmospheric-outlet column operation

Minimum analysis time in capillary gas chromatography. Vacuum- versus atmospheric-outlet column operation

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Column switching analysis with packed-capillary columns in gas chromatography.

By introducing sequentially connected two packed-capillary columns, a wide range of volatile compounds were successfully separated in gas chromatography. The hyphenation of two packed-capillary columns of 1.0 mm i.d. was accomplished using a conventional 6-port valve, where the temperature of each column was individually controlled in the respective column ovens. These columns were prepared w...

Atmospheric Analysis: Gas Chromatography

The determination of both naturally produced and anthropogenic organic species in the atmosphere is a key area in atmospheric chemistry research. Nearest to the earth’s surface, within the boundary layer of the troposphere, the determination of hydrocarbon species is important because of their ability to react rapidly with NOx in the presence of sunlight to form photochemical smog. At the other...

Capillary Column Selectivity and Inertness for Sulfur Gas Analysis in Light Hydrocarbon Streams by Gas Chromatography

Effect of Vacuum on the Performance of the Flame Ionization DetectorUsed for Vacuum-Outlet Gas Chromatography

Vacuum-outlet operation of short fused-silica open tubular columns for gas chromatography provides benefits to analysis speed by increasing the optimum velocity while minimizing the loss in resolution. Vacuum-outlet operation of a column with a gas chromatographic detector necessitates that the detector also be under vacuum. Simple modifications were made to a gas chromatograph]flame Ž . ioniza...