Definitely, you can analyze these gases using capillary columns provided that you chose helium as reference if want to analyze hydrogen. Otherwise hydrogen is well suited for other gases in combination with TCD.
Thank You Dr, Chandan for the valuable information. Can you suggest some reference materials to understand this better. Can u please also name capillary columns suitable for Hydrogen gas analysis in GC with FID?
Since, your interest deals with analysis of oxygen and hydrogen gases. Therefore, packed column like HayeSep Q 80/100 mesh or Molecular sieve 5A with TCD as detector shall be the best option for you. Capillary columns along with FID are more suited for saturated and unsaturated hydrocarbons.