。Molecular Sieve, Zeolite, 5A
。Thin and thick coatings for push limit separations, e.g. Ar/O2 separation at 35C, O2/N2 with 15sec
。Truly immobilized coating and smooth baseline workable for valve switching
。Preferred column to analyze fixed gases from hydrocarbon streams
。Elution order, H2, He, Ne, O2, N2, CH4, CO
。Regeneration of performance from water/CO2 adsorptions at 250C for 3hr
。ASTM recommended phase
。Noble gas, air from methane, fuel cell, etc
。Often used with other PLOT columns for fixed gas separation from sample matrix