Determined the purity by HPLC, it was found that the converting rate of isoquercitrin from rutin was about 70%, and the purity was more than 90%.
通过高效液相色谱检测纯度，结果表明异槲皮甙转化率为70%，纯度为90%以上。
ResultsThe purity of final product confirmed by HPLC and capillary zone electrophoresis to be more than 92%.
结果用反相高效液相色谱法和毛细管电泳法鉴定纯度在92 %以上。
HPLC methods were used for the qualitative and quantitative analysis. The purity of carotene crystal was 88.56% by HPLC method.
用高效液相色谱对纯化样品进行了定性和定量分析，结果显示三次重结晶后胡萝卜素纯度为88.56%。
Recombinant human BDNF was expressed in E. coli and is supplied in a lyophilized form. A greater than 96% purity was determined by reverse phase-HPLC and SDS-PAGE.
重组人脑源性神经营养因子（BDNF）在大肠杆菌中表达，以冻干形式提供。反相高效液相色谱法和SDS-PAGE测定其纯度大于96％。
Two main flavonoids in the onion were isolated and prepared by semi-preparative HPLC at the first time (purity more than 98%).
首次利用半制备柱采用高效液相色谱法分离制备了洋葱中两种主要的黄酮类化合物(纯度超过98%)。
The choice of the reaction routes and conditions for reaction were discussed. The purity of the end product was measured by High Performance Liquid Chromatography (HPLC).
对反应路线及反应条件的选择进行了讨论，并采用高效液相色谱法测定了产物的纯度。
Methods the baicalin, extracted by microwave, purified with acid, ultrafilter and macroporous resin respectively, and the purity of baicalin were quantitatively determined with HPLC.
方法黄芩经微波提取后，分别用酸沉法、超滤法、大孔树脂法三种方法进行分离纯化，并用HPLC对黄芩苷进行定量测定。
The results showed that the purity of products was more than 90% by analytical HPLC technology.
最后，采用分析型HPLC法对纯化的固体产物进行纯度检测，纯度高，均在90%以上；
It reduces manipulations of large amounts of radioactivity. The product was isolated by preparation HPLC. Its radiochemical purity is higher than 98%.
该法简便、不需要中间产物的分离纯化、操作放射性步骤少、制备周期短，产品用高压液相制备色谱分离纯化，效率高、纯度在98%以上。
The intermediate were purified by recrystallization. The analysis of purity of the products was studied through HPLC.
用重结晶法对所合成的中间体进行了提纯 ，并用高效液相色谱对产物纯度进行了分析。
The purity of the compounds was analyzed by HPLC.
高效液相色谱技术分析所提产物的质量分数；
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料，经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚，总收率达70％以上。
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料，经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚，总收率达70％以上。
应用推荐