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Behavior of fused silica capillaries subjected to gamma radiation. Part 1: Chromatographic performance
Authors:J A Hubball  P DiMauro  E F Barry  G E Chabot
Abstract:Fused silica capillaries deactivated with D4 and coated with OV-1 were subjected to cobalt-60 gamma radiation in order to elucidate the effect of incident radiation on column performance. The chromatographic performance of these open tubular columns in which OV-1 was polymerized in situ was found to be dependent on the dosage of radiation and was evaluated before and after the irradiated columns were rinsed with solvent. Of the radiation dosages employed, 3 MRad produced superior chromatographic performance coupled with very favorable residual surface activity.
Keywords:Gas chromatography  Fused silica capillary columns  Cobalt-60 gamma radiation  Immobilized phase  Crosslinking  Column activity  Temperature Stability
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