大孔硅胶是一种特殊型号的硅胶，与其他硅胶一样一种高活性吸附材料，属非晶态物质，其化学分子式为mSiO2·nH2O。
其中液相色谱反相填料，正相填料，生物工程用大孔硅胶，样品预处理净化富集柱以及微孔滤膜、滤器均已达到国际先进水平。
The liquid chromatography Silica and bonded silica gel, macro-porous silica gel for bio-engineering, SPE column and microprobe filters has reached advanced world standard.
发酵液经过预处理后，依次用大孔树脂吸附，硅胶柱吸附层析和薄层层析等分离方法即可获得农用抗生素TS99纯品。
Pure TS99 could be obtained from pretreatment fermentation broth through macroreticular adsorbent, silica gel column chromatography and thin-layer chromatography.
方法首先用溶剂萃取结合大孔吸附树脂分离，然后用硅胶柱精制提取。
Methods Silica gel superfine process was conducted by combining solvent extraction and separation with macroporous absorbent resin.
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