方法：利用硅胶柱色谱法对化合物进行分离，运用波谱方法确定结构。
Methods: the compounds were isolated by silica gel column chromatography, and their structures were elucidated by spectral methods.
方法：溶剂提取和硅胶柱色谱法进行分离，理化性质和光谱数据鉴定其结构。
Method: Compounds were separated by solvent extraction and column chromatography with silica gel and structures were elucidated by chemical evidence and spectral analysis.
分别采用硅胶柱色谱法和溶剂抽提，分离优质塑料抛光膏中的油脂和磨料部分。
Silica gel column chromatography and solvent extraction were used to separate grease and abradant in a kind of excellent polishing paste for plastics, respectively.
方法利用硅胶柱色谱法对牛白藤进行分离纯化，根据理化性质和核磁共振谱数据鉴定其结构。
Methods the compounds were isolated and purified by repeated silica column chromatography and identified by their physical characteristics and nuclear magnetic resonance spectrum.
方法：硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Methods: (1) to separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法：（1）以硅胶柱色谱法，乙酸乙酯-石油醚梯度洗脱，自何首乌中提取分离二苯乙烯苷单体成分。
Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
方法采用RP HPLC法对荧光素钠注射液进行成分分析并用硅胶柱色谱法对主要杂质进行分离，根据质谱和核磁共振谱数据进行结构鉴定。
Methods The components were analyzed using RP-HPLC. The main impurities were separated using silica gel column chromatography, which were identified by MS and NMR.
综述了凝胶渗透色谱法在重质油测定中的应用，并采用两支高效聚合物凝胶色谱柱代替传统的硅胶柱建立了分子量和馏程的评价系统。
The establishment of the gel permeation chromatography method for the the determination of molecular weight of high boiling petroleum was described in detail .
综述了凝胶渗透色谱法在重质油测定中的应用，并采用两支高效聚合物凝胶色谱柱代替传统的硅胶柱建立了分子量和馏程的评价系统。
The establishment of the gel permeation chromatography method for the the determination of molecular weight of high boiling petroleum was described in detail .
应用推荐