Summary
In order to prevent plugging during deactivation of small diameter (50 μm i.d.) capillary columns for gas and supercritical fluid chromatography, various high temperature deactivation methods were employed. Pure hexamethyldisilazane and hexamethyldisiloxane (a substitute for D4) were dynamically coated on the column, while a film (0.05 μm) of OV-101 was statically coated, before high temperature (450°C) treatment. Excellent deactivated columns were obtained, and no significant difference in column activity was observed using any of these three methods.
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Dedicated to Professor S. R. Lipsky on the occasion of his 60th birthday.
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Kong, R.C., Woolley, C.L., Fields, S.M. et al. Deactivation of small-diameter fused-silica capillary columns for gas and supercritical fluid chromatography. Chromatographia 18, 362–366 (1984). https://doi.org/10.1007/BF02262481
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DOI: https://doi.org/10.1007/BF02262481