1. Ettre, L. S., in “Open Tubular Columns in Gas Chromatography”, Plenum Press, p. 66 (1965).
2. Bouche, J. andVerzele, M., J. Gas Chromatog.6, 501 (1968).
3. Verzele, M., Verstappe, M., Sandra, P., Vanluchene, E. andVuye, A., J. Chromatog. Sci.10, 668 (1972).
4. To help those unaware of the possibilities: Some addresses of firms offering coated glass open tubular columns (not in all countries): Antech — Kurbrunnenstraße 21, D-6702 Bad Dürkheim, West Germany. Jaeggi Labor, CH-9043 Trogen, Switzerland. R.S.L., Reinaertdreef 19, B-9830 Latem, Belgium.
5. Gardiner, W. andHorning, E., Biochem. Biophys. Acta115, 524 (1968).