Question

which gas in not used as a carrier gas in GC​

Answer 1

Answer:

Commonly used and popular carrier gases include helium, hydrogen, and nitrogen, although argon, ammonia, and carbon dioxide also have been used to a minor extent. Also, hydrogen has long been used as a fuel gas for flame ionization detection (FID) as well as other detection methods in GC.

Answer 2

Inert gases are used as the carrier gas in Gass chromatography.

• The carrier gas is an inert gas that carries the samples in the gas chromatography.

• Examples of carrier gases are helium, nitrogen, argon, and hydrogen.

• The most commonly used carrier gases are helium and nitrogen.

• When compared to nitrogen, helium is expensive but it is safe to use and has an optimum linear velocity range.

• Nitrogen has a reasonable price and is safe to use but the optimum linear velocity range is said to be narrow and thus is an advantage.