Isotope separation by carrier diffusion.
D002245:Carbon Dioxide; D005740:Gases; D006371:Helium; D006859:Hydrogen; D009584:Nitrogen; D011868:Radioisotopes / Q000032:analysis*
D005740:Gases; D011868:Radioisotopes; D002245:Carbon Dioxide; D006371:Helium; D006859:Hydrogen; D009584:Nitrogen