"Olefin trap" and iodoalkanes, how well will it tr

[jonjon]

Wondering if anyone has an idea of how well an olefin trap (silver impregnanted) will trap iodoalkanes (C1-C6) from an air sample collection. We are looking into some large volume air sampling (1000s m3) and I am looking into some prefractionation approaches prior to GC-MS analysis. Will likely collect initially on Carboxen type, then thermally desorb to secondary trap (olefin?), then to GC. Ideally we would like to inject the entire air sample collected.

Thanks
Jon

[chromatographer1]

Do you think the silver will react with the halogenated compounds?

I would test it and see. If it is reactive then you will have low recoveries.

I would try Carboxen 1016 for your trap.

best wishes,

Rod

[MikeD]

Rod,

Is there any water isotherm data available for Carboxen 1016 ?

[chromatographer1]

I have no data that I can share with you. I can tell you that water is retained very little on Carboxen 1016 and should elute at the back side of the fixed gases (close to CO2).

I hope that is helpful.

best wishes,

Rod