| 摘要 |
<p>A particulate aromatic or araliphatic carbamate of a polysaccharide, having a mean diameter of 1 to 200 νm and a specific surface area of 0.5 to 300 m2/g, is produced by dissolving an aromatic or araliphatic carbamate of a polysaccharide in an organic solvent, adding thereto 0 to 0.5 part by volume of a C¿4? to C22 hydrocarbon, adding the resulting solution gradually to a well-stirred aqueous solution of a surfactant, removing the organic solvent, while continuing stirring, isolating the formed solid particles, and washing and drying them. The obtained carbamate has an excellent resolving power and can be used as the stationary phase in preparative liquid chromatography as such without being supported by a carrier.</p> |
