5篇
您的检索式：作者名="Dunfang LI"
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| 1 | Flavonoid profiling of a traditional Chinese medicine formula of Huangqin Tang using high performance liquid chromatography显示文摘The quality control processes for herbal medicines have been problematic. Flavonoids are the major active components of Huangqin Tang(HQT, a traditional Chinese medicine formula). In this study, we used a combinative method approach consisting of chromatographic fingerprinting(high performance liquid chromatography; HPLC), quantitative methods and a pharmacodynamic evaluation model to analyze the flavonoids of HQT obtained from different sources. Ten batches of HQT were analyzed by the HPLC fingerprinting method and 26 common peaks were detected, of which 23 peaks corresponded with the chemical profile of HQT. In addition, 11 major compounds were identified by LC–MS analysis(liquid chromatography–tandem mass spectrometer; LC–MS^n) and quantified by the HPLC quantitative method approach. The studied10 batches of HQT were found to be homogeneous in their composition with a similarity between 0.990 and1.000. The distribution of the 11 identified compounds was found to be very similar among the batches. Only slight pharmacodynamic differences were detected between the different batches, confirming the homogeneity of HQT. The results of this study prove that the combination of chromatographic fingerprinting and quantitative analysis can be readily used for comprehensive quality control of herbal medicines. | Tao Li Shuaixing Zhuang Yiwei Wang Yanli Wang Weihao Wang Huihui Zhang Li Chen Dunfang Wang Zhongming Zhou Weipeng Yang | 2016 | Acta Pharmaceutica Sinica B2016，6，2： | 19 |
| 2 | Comparison of the Molecular Interaction Volume Model with the Wagner Formulae in the Zn-Pb-In and Zn-Sn-Cd-Pb Dilute Solutions显示文摘The coordination numbers in the molecular interaction volume model (MIVM) can be calculated from the common physical quantities of pure liquid metals. A notable feature of the model lie in its capability to predict the thermodynamic properties of solutes in the Zn-Pb-ln and Zn-Sn-Cd-Pb dilute solutions using only the binary infinite dilute activity coefficients, and the predicted values are in good agreement with the experimental data of the dilute solutions. | Dongping TAO Zhuo CHEN Dunfang LI Yifeng GAO Qianghua SHEN School of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China | 2004 | Journal of Materials Science & Technology2004，20，3： | 2 |
| 3 | Electronic Structure and Photocatalytic Characterization of a Novel Photocatalyst AgAlO2 显示文摘 | Ouyang Shuxin Zhang Haitao Li Dunfang | 2006 | J Phys Chem B2006，110，11： | 1 |
| 4 | Electro- nic structure and photocatalytic characterization of a novel photocatalyst AgAlO2 显示文摘 | Ouyang Shuxin Zhang Haitao Li Dunfang | 2006 | J Phys Chem B2006，110，11： | 1 |
| 5 | Band structure and photocatalytic properties of perovskite-type compound Ca2NiWO6 for water splitting显示文摘 | Li Dunfang Zheng Jing Zou Zhigang | 2006 | Journal of Phys and Chem of Solid2006，67，56： | 1 |
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