SINCE most high-temperature chemical systems are sensitive to small partial pressures of oxygen in argon, which is commonly used as an inert atmosphere, it is of interest to know the oxygen ...

THE chromatographic separation of argon and oxygen is difficult, and existing methods depend on one of the following techniques: (1) Separation on a molecular sieve 5 Å column at 18° C (ref.

However, isolating oxygen from mixtures presents a significant technological challenge. Because many gases, including argon and oxygen, share similar physical properties, separating them is difficult.