| 1. | Conclusion the co - utilization of silica gel column and gel chromatography can greatly improve the efficiency of isolation and purification
结论硅胶柱色谱和凝胶柱色谱的混合利用可以提高供试品的分离纯化效果。 |
| 2. | Sal - gel column is a new - type of chromatographic column with high temperatures tolerance , excellent separation and repeatability
摘要溶胶凝胶柱是一种新型色谱柱，具有耐高温、分离效果佳、重现性好、制作工艺简单等特点。 |
| 3. | A white needle crystal was isolated and purified on systematic extraction of the alkaloid by silica gel column and gradient sublimation from oxytropis glabra
摘要采用生物?系统提取、矽胶柱层析分离及梯度升华技术从小花棘豆干草粉中分离出一种白色针状结晶。 |
| 4. | An active metabolite was obtained by purification with precipitated by ethanol , sephadex g - 25 gel , deae - cellulose ion exchange resin and silica gel column chromatography
经乙醇( 95 )沉淀、 sephadexg - 25凝胶层析、 deae -纤维素离子交换层析和硅胶层析纯化，得到抑制黑曲霉生长的单一组分。 |
| 5. | Methods the optimal elution requirement was found by comparing several different elution agents , and the pure compound was purified by silica gel column and gel chromatography
方法通过最佳展开剂的选择，找到硅胶柱色谱系统的最佳洗脱条件，粗分离后的供试品通过凝胶柱色谱系统分离纯化得到纯供试品。 |
| 6. | In the process of experiment , we separated better efficient antioxidative fractions by silica gel column chromatography with different extensible reagent , ethyl acetate : hexane ( 3 : 7 ) and chloroform : methanol ( 9 : 1 )
实验中采用乙酸乙酯环己烷( 3 : 7 ) 、氯仿甲醇( 9 : 1 )为展开剂依次二次干柱层析分离出抗氧化物质。 |
| 7. | The methods such as distn . and silica gel column chromatography were used to sep . the various components of the thickener , and the ir spectrometry , gc - ms combination and esi - ms were used to certify the structures of the different components
用蒸馏和矽胶柱色谱等方法对增稠剂中的各组分进行分离，并用红外光谱法、气质联用和电喷雾质谱法对各组分进行结构鉴定。 |
| 8. | This material was loaded onto a silica gel column and the column was eluted with chloroform several times until the fraction of interest was collected . finally we obtained some light yellow green ointment liquid f i
采用硅胶作干层析柱填充物，用氯仿作展开剂和洗脱液，反复硅胶层析，对柄海鞘鞘囊氯仿浸提物进行分离、提取与纯化，最后得到一浅黄绿色的油状液体fraction (以下均称f ) 。 |
| 9. | We got 4 parts from the extraction of astragalus variabilis bunge through systemic research ways of phytochemistry , which respectively are the part of petroleum ether , the part of petroleum ether , the part of etoa and the part of n - buoh the part of n - buoh are isolated by the successively methods of silica - gel column chromatography , tlc and sublimation
摘要采用植物化学成分系统研究的方法，从变异黄芪醇提总浸膏中分段萃取得到石油醚提取部分、氯仿提取部分、乙酸乙酯提取部分和正丁醇提取部分。 |
| 10. | The powder was then applied to a silica gel column chromatography charged with 80 % acetone in water and eluted with the same solvent . after concentrating and drying , relatively pure fr - 008 was obtained . hplc assay a comparison between antibiotic fr - 008 and candicidin has been made by studying the hplc separation profiles of antibiotic fr - 008 , candicidin and a mixture of both
对链霉菌fr - 008和灰色链霉菌imru3570的rflp分析发现，它们的染色体具有很高同源性； pfge的比较研究发现，这两个菌株的明显区别是链霉菌fr - 008携带有两个线性质粒，而在灰色链霉菌imru3570中则没有这两个线性质粒。 |
