Gas Chromatography: Separating Volatile Mixtures

Gas chromatography separates and analyzes volatile compounds in a sample. It is used to identify and measure the parts of complex mixtures. This makes GC useful in environmental analysis, pharmaceuticals, and petrochemicals.

GC is also called vapor-phase chromatography (VPC) or gas-liquid partiti...

In gas chromatography or GC, the sample is first vaporized and mixed with a carrier gas such as helium, nitrogen, or argon.

This forms the gaseous mobile phase that flows through a column containing the stationary phase.

In gas–liquid chromatography or GLC, solid support particles are coated with a nonvolatile, thermally stable, ch...