| 摘要 |
A method for the preparation of permeable hollow particles having an outer shell of a porous, non-metallic material exhibiting a high degree of mechanical rigidity, the particles being in the size range 15000 .mu.m; a method for the preparation of corresponding permeable composite particles containing a second material capable of at least temporarily interacting with one or more chemical. species; particles prepared by such methods, and the use of such particles in a variety of processes, for example: chromatographic procedures such as HPLC, liquid-chromatography; gas chromatography, ion-exchange, gel filtration, size-exclusion chromatography or affinity chromatography; filtration of a fluid medium; adsorption or absorption of a substance present in a fluid medium; catalysis of a reaction taking place in a fluid medium; immunochemical procedures such as immunosorption; solid-phase synthesis, such as solid-phase peptide or protein synthesis, or solid-phase oligonucleotide synthesis; microbiological procedures; enzyme reactor procedures; and carriage of live cells of human, animal, plant, fungal or microorganism origin.
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