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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。
- 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。
- 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。
- 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。
- PREPARATIVE HPLC SEPARATION OF GLYCOCHOLIC ACID-(~(125)I-HISTAMINE) HPLC分离纯化~(125)I-甘胆酸(CG)-组胺
- preparative high performance liquid chromatography(preparative HPLC) 制备高效液相色谱
- Keywords preparative high performance liquid chromatography（preparative HPLC）;full-quantified fingerprint;quality control;traditional Chinese medicines（TCMs）; 制备高效液相色谱;定量指纹图谱;质量控制;中药;
- Studies on HPLC fingerprint of Berberis L. 小檗属植物药材的HPLC指纹图谱研究。
- The content of ferulic acid was determined by HPLC. 采用HPLC法测定阿魏酸的含量。
- Construction of HPLC began at the end of 2003. 河北泛亚龙腾建设工作始于2003年底。
- Bright future belongs to the preparative person. 美好的未来属于有准备的人。
- METHODS: A HPLC method was used. 方法:采用HPLC法。
- We will start preparative work once win the bid. 项目中标之后，我们将立即开始前期准备工作。
- The purity of baicalein is about 93% in the HPLC. 高效液相色谱检测分离的黄芩素的纯度可达93%25。
- Production Certificates and test preparative work. 协助生产许可证和型式试验的准备工作.
- Methods: Hyperoside was determined by HPLC. 方法:采用高效液相色谱法。
