How to reduce the moisture concentration in a flow gas from ~20 PPM level (flowing from Argon or Nitrogen cylinders ) to ~10PPB level?

I have Ar/N2 cylinders that have a moisture concentration of 20 PPM. I have to reduce that down to 10 PPB. Is there any suitable setup or moisture scavengers, that should be used?

14 December 2012 2,603 5 View