Gas chromatography (GC) was at one time commonly called “GLC,” where the “L” stands for liquid. Inside GC columns are particles of a ceramic or inert material coated with an extremely viscous liquid stationary phase that interacts with the analyte.

Water baths are used in industrial and clinical laboratories, academic facilities, government research laboratories, environmental applications, as well as food technology and wastewater plants. Chillers, on the other hand, are refrigerators that cool down samples or processes to preset temperatures.