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Hello everyone,
I would like to proportion the water ( under gas form ) in different gas as argon or azote.
I want to have only the concentration of water.
What type of column could you suggest to me?

Best regards

If you just want to measure water peak a 30m x530µm HP-FFAP can be used, this is also possible for water traces. All permanent gase would give just 1 peak at the dead time of the column.

A 19095p-uo4 can be used as well but the peak shape is not as good as on the HP-FFAP and traces below 100 ppm are often difficult to analyse, but some other gases like CO2 Methane etc are separated form the main compound N2 or Ar.

Hope it will help you

Of course, it helps me a lot !thanks !!