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Simultaneous determination of two triterpenic acids in root of Kadsura coccinea by HPLC |
PENG Fuquan1 CHEN Mingquan1 HE Fenglei1 YANG Nengying1 JIANG Xiangjun2 NONG Genlin1 |
1.Guangzhou Baiyunshan Pharmaceutical Co. Chenliji, Guangdong Province, Guangzhou 510288, China;
2.Guilin Modern Biological Technology Co. Yiyuansheng, Guangxi Zhuang Autonomous Region, Guilin 541004, China |
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Abstract Objective To establish a method for the determination of 12-acetoxycoccinic acid and seco-neokadsuranic acid A in root of Kadsura coccinea. Methods Ultrasonic method was used to extract the herbs. HPLC chromatographic conditions included the Atlantis T3-C18 (4.6 mm×250 mm, 5 μm) column, using acetonitrile-0.1% phosphoric acid solution (80∶20) as the mobile phase at a flow rate of 1.0 mL/min. The detection wavelength was set at 310 nm and the column temperature was maintained at 30℃. Results The calibration curve of 12-acetoxycoccinic acid was in good linearity over the range of 0.0157-0.3140 μg (r = 0.9998). The average recovery was 100.4% with RSD of 2.58% (n = 6). And the calibration curve of seco-neokadsuranic acid A was in good linearity over the range of 0.0848-1.6960 μg (r = 0.9999). The average recovery was 101.1% with RSD of 1.21% (n = 6). Conclusion The method is accurate, simple, reproducible, and can be used to determine the content of 12-acetoxycoccinic acid and seco-neokadsuranic acid A in the root of Kadsura coccinea.
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