CHF3 column

[tigerk2001]

Any packed column suggestion for analysis of air in pure CHF3?

thanks for your help

tiger

[Johnny Rod]

Molsieve 5A should do it, 2m long x 2mm ID at 40C (as a starting point)

[chromatographer1]

almost any porous polymer column should be fine.

Rod

[tigerk2001]

For porous polymer, what would be the approximative elution time for CHF3? I suppose after the CO2?

[chromatographer1]

I am 1000 miles away from my files, so I don't remember. Perhaps you might search Valco for the Porapak database they have for a retention time for CHF3.

Rod