Why is hydrogen used in gas chromatography?

[Priya_Singh]

Hi I am looking for Relevant Solution for why hydrogen used in gas chromatography?

[dblux_]

Hi I am looking for Relevant Solution for why hydrogen used in gas chromatography?

You mean hydrogen as a carrier gas or a fuel ?

[rb6banjo]

Depends on your perspective. It's very important for creating reproducible and low-noise flames for the flame-ionization detector. It's also a fairly inexpensive carrier gas. In fact, you can make it in your lab yourself (with a generator) - thus eliminating the need for a compressed-gas cylinder in your lab.

[MSCHemist]

As a carrier it provides very fast GC runs and is cheap and renewable.
As a fuel for FID, NPD, FPD etc it provides a good flame.

[dblux_]

...
As a fuel for FID, NPD, FPD etc it provides a good flame.

Hydrogen is not replacable for these detectors, so it makes an answer straighforward.

[osp001]

As J.J. van Deemter would note, hydrogen affords faster runs:

http://www.restek.com/Landing-Pages/Content/gen_B008

https://www.chem.agilent.com/cag/cabu/carriergas.htm

Its primary detraction is that whole exploding thing. Fortunately, current model GCs are engineered to reduce that risk. Old ones not quite so much.