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![GC oven](http://upload.wikimedia.org/wikipedia/commons/thumb/7/74/GC_Oven_inside.jpg/500px-GC_Oven_inside.jpg)
Credit: Polimerek
Gas chromatography is an important type of chromatography used in chemical analysis. A volatile substance or mixture is injected and carried down a column (the coil shown) to a detector, which records the amount and the time on the column for each component. An oven (shown here with the door open) maintains the column at a desired temperature.