GC Columns

There are GC Columns offered by us that have the stationary phase coating their inner surfaces rather than being packed into the cavity. The driving force that moves solutes forward, the mobile phase, is a gas, also called the carrier gas. Unlike in liquid and supercritical fluid chromatographies, the mobile phase in GC plays no active role in the separation process other than to move solutes toward the column outlet. In the GC system, a sample is vaporized and injected into the head of the separation column packed with a finely divided solid or coated with a film of a liquid. GC Columns are very efficient.