硅胶 中文名称： 粗孔块状硅胶 英文名称： silica gel macroporous 关键词： 粗孔块状硅胶 粗孔块状硅胶 您想采购此产品吗？ 点击立即发布只需5分钟，让供应商主动联系您！ 粗孔块状硅胶 供应商： 青岛美高集 基于1个网页 -
基于4个网页-相关网页
Methods The compounds were isolated by silica gel, ODS, and macroporous resin column chromatography and their structures were determined by means of spectral analysis.
方法利用正相、反相硅胶柱和大孔树脂柱色谱分离，并通过波谱技术进行结构鉴定。
Methods Silica gel superfine process was conducted by combining solvent extraction and separation with macroporous absorbent resin.
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。
The product of fermentation was separated with macroporous resins, and then purified by the silica-gel column chromatography and recrystallization. The pure product was assayed by NMR, IR and MS.
发酵产物经大孔吸附树脂、硅胶柱层析及重结晶等方法制备出牛蒡子苷元纯品，并采用核磁共振（NMR）、红外（IR）、质谱（MS）等方法对产物进行了鉴定。
应用推荐