The Catalytic Effect of the Support on Terpene Compounds in Gas-Liquid Chromatography

The catalytic action of several solid supports, that is, glass, rock crystal, quartzite, sea sand, unglazed porcelain and commercial supports, have been examined. Glass shows practically no catalytic action in the examined terpene compounds, except for linalyl acetate and α-santalol, which were decomposed and/or isomerized slightly, but this support does show an adsorption of oxygen-containing compounds. The catalytic action of rock crystal is slightly greater than that of glass, but the adsorptivity of rock crystal is extremely small. Commercial diatomaceous earth supports show a remarkable catalytic action.