溶着薄層クロマトグラフィー(第12報)多孔性金属酸化物による溶着薄層クロマトグラフィー

概要

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Preparation of porous sintered plates of metal oxide is described. Magnesium silicate, magnesium oxide, titanium dioxide, or zinc oxide was used as adsorbent, and soda-lime glass as a binder. A mixture of one part of adsorbent and three to four parts of finely powdered soda-lime glass was suspended in organic solvents, and the slurry was spread on soda-lime glass plate and air-dried. The thin-layer was heated in an electric furnace at 400-700°for several minutes to yield an adsorbent-fused glass layer. Stability of the porous metal oxide adsorbents against a high temperature was found from the fact that no sintering of the adsorbents occurred as evidenced by scanning electron microscopy and X-ray diffraction, and thermogravimetric differential thermal analysis and thermogravimetric differential scanning colorimetry to a higher temperature failed to show thermal mass change or transition under the welding condition, except titanium dioxide which showed the crystal thermal change of crystal form from anatase to rutile form. These porous sintered plates of metal oxides were used for the thin -layer chromatographic separation of organic compounds and very satisfactory results were obtained by the use of magnesium silicate sintered plate for sugars and cardiac glycosides, titanium dioxide sintered plate for pesticides, and magnesium oxide sintered plate for sterols and steroidal sapogenins.
公益社団法人日本薬学会の論文
1975-03-25