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| Content Analysis of Emodin in Radix Polygoni Multiflori |
| Hits 1954 Download times 1754 Received:March 29, 2002 |
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| DOI
10.11656/j.issn.1672-1519.2002.03.29 |
| Key Words
Soxhlet extraction;Radix Polygoni Multiflori;Emodin;Thin-layer scanning |
| Author Name | Affiliation | | Qi Aidi | Tianjin University of TCM, Tianjin 300193, China | | Pan Shuowen | Tianjin University of TCM, Tianjin 300193, China | | Zhu Chen | 天津中医药研究院, 天津, 300020 |
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| Abstract
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| Objective: To analyze the content of emodin in Radix Polygoni Multiflori by thin-layer scanning. Methods: Emodin was distilled with Soxhlet extraction process, using CHCl3 as liquor, Skellysolve B-ethyl acetate-CHCl3-HCOOH (10: 3: 3: 0.25) as developer and detecting wavelength 440nm. Results: The linearity of emodin was fine in 0.1～5.0μg(r=0.9995), average recovery rate 105.73%, RSD 2.43%, color dot stable for 4 hours. Conclusion: The method had laid the foundation for the control of the inherent quality in Radix Polygoni Multiflori. |
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