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将硅胶用二氯二甲基硅烷处理后,能降低硅胶对极性物质的吸附,增加其对非极性物质或弱极性物质如5-Br-PADAP等大多数螯合剂的吸附,同时使改性硅胶适应的pH范围扩宽,对金属离子的净化学吸附增大,使用寿命增加.
Treating silica gel with dichlorodimethylsilane can reduce the adsorption of silica on polar substances and increase the adsorption of most chelating agents such as 5-Br-PADAP on non-polar substances or weak polar substances Modified silica gel to adapt to broaden the pH range, the metal ions on the clean chemical adsorption increased life expectancy.