carrier gas
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Online instruments use nitrogen as a carrier gas; the principle behind this
The role of the carrier gas is to carry the gas sample or the vaporized sample gas at a certain flow rate into the chromatography column for separation; thereafter, the separated components are carried to the detector for analysis. Finally, they exit the chromatography system and are either vented or collected. The carrier gas merely serves to transport the sample and plays almost no role in the separation process itself. Common carrier gases include hydrogen, helium, nitrogen, argon, carbon dioxide, etc. The choice and purification of the carrier gas depend on the detector.
Why does it need to carry a carrier gas? What will happen to it without an inert gas? I’m a beginner; please don’t laugh at me
This post was last edited by ylb913 on 2016-10-14 at 12:39 to provide motivation.