| 光谱学与光谱分析 |
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| Test of the Effect of Different Supercritical Pressure on Andrographolide Crystallization with Chromatography and Spectrum |
| ZHANG Wen-cheng1,2,ZHANG Xing-yuan2,PAN Jian1 |
1. Engineering Research Center of Bio-Process of Ministry of Education，Hefei University of Technology,Hefei 230009，China
2. Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026，China |
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Abstract With the new technique of supercritical carbon dioxide extraction and crystallization,the experimental materials of 30% and 95% andrographolide were used to investigate the effect of different pressure on crystal distribution on crystallization board,what’s more,the effect of X-ray diffraction and infrared ray spectrum on crystal was tested. The results showed that andrographolide was crystallized on crystallization board in purity gradient with high performance liquid chromatography;the higher the pressure,the higher the crystallization ratio. In addition,the crystal was inclining to directional growth;the chemical structure of andrographolide was not changed with the variety of pressure with infrared ray spectrum analysis.
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Received: 2006-03-13
Accepted: 2006-09-23
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Corresponding Authors:
ZHANG Wen-cheng
E-mail: zwc1012@163.com
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| Cite this article: |
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ZHANG Wen-cheng,ZHANG Xing-yuan,PAN Jian. Test of the Effect of Different Supercritical Pressure on Andrographolide Crystallization with Chromatography and Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(08): 1657-1660.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I08/1657 |
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