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Study on the Quality Control of Dabaidu Capsules

Tan Zhao-yang

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Abstract

Objective To develop the quality control of Dabaidu capsules. Methods Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae in Dabaidu capsules were identified by TLC, emodin and chrysophanol in Dabaidu capsules were determinated by HPLC. Results Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae can be identified by TLC. Emodin showed a good linear relationship at range of 0.004～0.04 μg, r=0.9999. The average recovery was 100.85% and RSD was 1.56% (n=5). Chrysophanol showed a good linear relationship at range of 0.0075～0.075 μg, r=0.9999. The average recovery was 100.52% and RSD was 1.63% (n=5). Conclusion The methods are accurate and can be used for the quality control of Dabaidu capsules.

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What this paper is about

Objective To develop the quality control of Dabaidu capsules. Methods Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae in Dabaidu capsules were identified by TLC, emodin and chrysophanol in Dabaidu capsules were determinated by HPLC. Results Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae can be identified by TLC. Emodin showed a good linear relationship at range of 0.004～0.04 μg, r=0.9999. The average recovery was 100.85% and RSD was 1.56% (n=5). Chrysophanol showed a good linear relationship at range of 0.0075～0.075 μg, r=0.9999. The average recovery was 100.52% and RSD was 1.63% (n=5). Conclusion The methods are accurate and can be used for the quality control of Dabaidu capsules.

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Available abstract

Objective To develop the quality control of Dabaidu capsules. Methods Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae in Dabaidu capsules were identified by TLC, emodin and chrysophanol in Dabaidu capsules were determinated by HPLC. Results Herba taraxaci, Radix paeoniae rubra and Radix angelicae dahuricae can be identified by TLC. Emodin showed a good linear relationship at range of 0.004～0.04 μg, r=0.9999. The average recovery was 100.85% and RSD was 1.56% (n=5). Chrysophanol showed a good linear relationship at range of 0.0075～0.075 μg, r=0.9999. The average recovery was 100.52% and RSD was 1.63% (n=5). Conclusion The methods are accurate and can be used for the quality control of Dabaidu capsules.

Key concepts: Emodin, Radix (gastropod), Linear relationship, Chromatography, High-performance liquid chromatography, Negative control, Traditional medicine, Positive control

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