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Determination of five components in Shudan Tablets by method of quantitative analysis of multi-components with a single-marker |
JI Rui-fang1 MENG De-xin2 |
1. Ji′nan Institute for Food and Drug Control, Shandong Province, Ji′nan 250102, China;
2. Ji′nan Zhangqiu District Hospital of Traditional Chinese Medicine, Shandong Province, Ji′nan 250200, China |
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Abstract Objective To establish a method for the determination of aloe-emodin, rhein, emodin, chrysophanol and physcion in Shudan Tablets by quantitative analysis of multi-components with a single-marker (QAMS). Methods The determination was performed on a Shimadzu VP-ODS C18 column (4.6 mm×250 mm, 5 μm) with mobile phase consisted of methanol-0.1% phosphoric acid solution (85∶15) at the flow rate of 1.0 ml/min. The detection wavelength was set at 254 nm, and the column temperature was 35℃. Using emodin as internal reference, the relative correction factors for other four components were established, and then the content of each component was calculated according to relative correction factors. Moreover the determination results were compared with those obtained by external standard method(ESM). Results The liner range of aloe-emodin, rhein, emodin, chrysophanol and physcion fell within the ranges of 0.4968-9.9365, 0.4791-9.5824, 5.4137-108.2739, 2.1948-43.8950 and 0.9563-19.1268 μg/ml, respectively. The average recoveries (n=6) were 95.22%, 96.46%, 98.29%, 97.90% and 95.88%, respectively. The relative correction factors of aloe-emodin, rhein, chrysophanol and physcion were 0.7640, 0.9118, 0.7257 and 0.9830, respectively, with good repeatability under the experimental conditions such as different instruments and chromatographic columns. Compared with the ESM, the determination results of QAMS showed no significant differences. Conclusion The QAMS is simple,accurate and reliable. It can be used for the quality analysis of multiple components in Shudan Tablets.
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