Changing carrier gas from helium to argon

Argon is used in packed and capillary GC. You do what you do when changing a column, cool the system down, maybe switch it off, change the gas supply, put the column in, let it flush for an hour with Argon and you are good to go. There is nothing special in using Argon over nitrogen, hydrogen or helium, except it is slower in opt. average linear velocity.

Regards,

Norbert 

Argon is used in packed and capillary GC. You do what you do when changing a column, cool the system down, maybe switch it off, change the gas supply, put the column in, let it flush for an hour with Argon and you are good to go. There is nothing special in using Argon over nitrogen, hydrogen or helium, except it is slower in opt. average linear velocity.

Regards,

Norbert