The Origins of GC Carrier Gases: Putting a Genie in the Bottle

摘要

Unlike liquid chromatographers, gas chromatographers have only a few mobile phases to apply to their separations. The mobile phase in liquid chromatography (LC) plays an active role in determining solutes' retention characteristics, and it does so in relation to the chemical nature of the stationary phase. To that end, liquid chromatographers employ various solvents, solvent mixtures and gradients, buffers, and other additives in combination with a wide array of stationary phase modes and types that give them degrees of control over their separations that the rest of us might dream of.