Predicting selectivity characteristics of adsorbent columns is often a wild guess. Yes, we know argon will have less retention than krypton, but how well do adsorbent columns separate noble gases from permanent gases? Can neon and hydrogen be resolved using a porous polymer column or do we have to use more retentive columns, like Molecular Sieves and ShinCarbon? To give the definite answers, we mapped out the selectivity of some of our adsorbent columns for noble gases relative to permanent gases.<\/p>\n\n\n\n
The column with the least retention, Q-Bond<\/strong>, separates noble gases from each other, however, helium and hydrogen coelute with neon, and argon elutes at the same time as the main air components oxygen and nitrogen.<\/p>\n\n\n