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2004•Research and Practice on Chinese MedicinesRequires access

Determination of Emodin and Chrysophanol in Huanglianshangqing Capsule by HPLC

Fan He-ping

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Abstract

Objective To develop an HPLC assay for determining Emodin and Chrysophanol in Huanglianshangqing Capsule.Method A C 18 column was used. The mobile phase was with a mixture of methanol-0.2% Phosphoric Acid(80∶20).The flow rate was 1.0ml/min,and wavelength was 254 nm.Result The average recovery rates of Emodin and Chrysophanol were 98.4%(n=5)and 98.5%(n=5) respectively; RSD were 1.1% and 0.9% respectively. Conclusion The method is proved simple, accurate, highly sensitive and recommendable.

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Objective To develop an HPLC assay for determining Emodin and Chrysophanol in Huanglianshangqing Capsule.Method A C 18 column was used. The mobile phase was with a mixture of methanol-0.2% Phosphoric Acid(80∶20).The flow rate was 1.0ml/min,and wavelength was 254 nm.Result The average recovery rates of Emodin and Chrysophanol were 98.4%(n=5)and 98.5%(n=5) respectively; RSD were 1.1% and 0.9% respectively. Conclusion The method is proved simple, accurate, highly sensitive and recommendable.

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Available abstract

Objective To develop an HPLC assay for determining Emodin and Chrysophanol in Huanglianshangqing Capsule.Method A C 18 column was used. The mobile phase was with a mixture of methanol-0.2% Phosphoric Acid(80∶20).The flow rate was 1.0ml/min,and wavelength was 254 nm.Result The average recovery rates of Emodin and Chrysophanol were 98.4%(n=5)and 98.5%(n=5) respectively; RSD were 1.1% and 0.9% respectively. Conclusion The method is proved simple, accurate, highly sensitive and recommendable.

Key concepts: Emodin, Phosphoric acid, Capsule, Chromatography, High-performance liquid chromatography, Chemistry, Methanol, Organic chemistry

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