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- Object To establish an isolation method of theanine reference substance by preparative HPLC. 目的研究制备型高效液相色谱分离纯化茶氨酸对照品的方法。
- Conclusion The results show that this method is simple and effective to improve the efficiency of preparative HPLC under linear scale up mode. 结论在线性放大模式下,重叠分辨图法是一种有效的优化流动相比例的方法。
- Methods:The fermentation extracts were isolated and purified from endophyte HCCB00189 by solvent extraction,column chromatography and preparative HPLC,respectively. 方法:采用溶剂萃取、硅胶柱层析及制备HPLC等方法,对活性菌株的发酵物进行分离,并根据理化性质和光谱分析对化学结构进行鉴定。
- In this study, six compounds were isolated from the twigs of Syringa amurensis (Rupr.) by using open-column, preparative TLC and preparative HPLC methods. 研究中,我们采用多种色谱手段包括常压柱色谱,制备TLC,制备HPLC等从暴马丁香枝中分离得到6个单体化合物。
- Through HPLC and preparing HPLC and the analysis of molecular weight and chemical group by HPLC/MS,Two flavonol glycosides from tea seed flakes were separated and identied. 采用HPLC分析茶籽饼粕中的黄酮苷,以制备型HPLC对其中的主要黄酮苷进行分离,再以HPLC/MS分析主要黄酮苷的分子量,在此基础上,确认茶籽饼粕中2种黄酮苷的化学结构。
- The sample of ginkgo biloba extracts was prepared by solvent extraction,column chromatography and solid phase extraction,the ginkgolic acids was purified by preparative HPLC. 通过萃取、层析和固相萃取等方法预处理银杏叶提取物,然后用HPLC制备色谱柱自制银杏酸纯品,结合紫外光谱、氢核磁共振和高效液相色谱,对银杏酸进行结构解析。
- V1/V2= (r1/r2) 2 where V1and V2 is the diameter for analytical and preparative column respectively, r1 and r2 is the flow rate for analytical and preparative HPLC respectively. 小中大色谱柱直径变大的化,流速也要跟着放大,保持线速度不变,分离效果变化很小。
- The main products now include analytical and preparative HPLC systems (pumps and UV-Vis detectors), dynamic Axis pressure columns, common preparative columns, column packing pump systems and all kinds of hplc fittings. 公司的主导产品目前有分析高效液相系统、制备高效液相系统、动态轴向压缩系统、常规、特型制备色谱柱、装柱系统以及液相色谱仪的附件、备件等。
- Experience is their preparation for giving advice. 经验为她们进行咨询作了准备。
- The advertising campaign is still in preparation. 广告宣传攻势仍在准备中。
- You can't pass an exam without preparation. 不准备就考不及格。
- A drug or preparation containing arsenic. 砷化合物含砷的药剂或制剂
- The dictionary is now in rapid preparation. 这本词典现在正在迅速编写之中。
- The preparation for his cough included camphor. 为医治他的咳嗽而调制的药中包括樟脑。
- Glycerol or a preparation of glycerol. 甘油,丙三醇甘油或丙三醇配制品
- PREPARATIVE HPLC SEPARATION OF GLYCOCHOLIC ACID-(~(125)I-HISTAMINE) HPLC分离纯化~(125)I-甘胆酸(CG)-组胺
- Made up without preparation; improvised. 即兴的不经准备而作的; 即兴的
- Care or preparation in advance; foresight. 先见,提前考虑或准备; 远见
- Years of work have gone into the preparation of this dictionary. 这部词典的筹备工作已进行了多年。
- They have made good preparation for the upcoming elections. 他们对即将到来的选举作了充分的准备。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries