What gases can porapak Q analyze

[tklemz]

What gases can the porapak Q analyze.

[chromatographer1]

Anything that does not react with the plastic, corrosive gases like HF would not be suitable. Remember the beads are carbon based materials with lots of aromatic rings.

best wishes,

Rod

ps

I should add there is a limit due to molecular size where the elution time and peak width grow too large to be useful. Increasing the temperature above 200°C decreases the life of the porous polymer beads. The published programmed (not isothermal) temperature limit for Q is 275°C. Generally, C8 hydrocarbons are close to the limit, with corresponding tetra or higher chlorofluorohydrocarbons.