...包括：铅盐沉淀法、超滤膜分离法、硅胶柱层析法、大孑L吸附树脂法、制 备薄层色谱法、制备型高效液相色谱法（Preparative HPLC）、高效逆流色谱层析 法（HSCCC）等。天然产物的粗提物成分比较复杂，要想得到纯化合物要经过很 多分离步骤。
基于4个网页-相关网页
Recycling Preparative HPLC 循环制备液相色谱
semi-preparative HPLC 高效液相色谱
Bio-compatible Preparative HPLC System 生化制备系统
Preparative HPLC system 制备型高效液相色谱仪
Acetonitrile for preparative HPLC 乙腈
Preparative Gradient HPLC 制备级梯度液相层析仪
Two main flavonoids in the onion were isolated and prepared by semi-preparative HPLC at the first time (purity more than 98%).
首次利用半制备柱采用高效液相色谱法分离制备了洋葱中两种主要的黄酮类化合物(纯度超过98%)。
To extract and purify type I collagen from pigskin, initial extraction and chromatography on semi -preparative HPLC were tested.
从猪皮中分离纯化I型胶原蛋白，并对其部分性质进行研究。
Our 800dac systems are put into use on the customer's site. It is the significant indicator that we step in the world front rank of industrial preparative HPLC system.
以800dac系统为代表的大型纯化分离设备的正式投入使用，是我公司在工业化色谱领域中走进世界前列的明显标志。
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