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Determination of Linarin in Qingre Qushi Granule by HPLC

Du Jing

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Abstract

Objective To establish a HPLC method for the determination of linarin in Qingre Qushi granule.Methods The Hypersil C18(250 mm×4.6 mm,5 μm)was used.The mobile phase was consisted of acetonitrile-0.1% phosphoric acid(25∶75) with flow rate 1.0 ml/ml.The detection wavelength was at 334 nm.Results The method was linear within the range of 5.024～100.48 μg/ml,r=0.9999.The average recovery was 98.7%,and RSD was 1.2%.Conclusion The method is simple and accurate with a good repeatability,and it can be used for the control of Qingre Qushi granules.

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What this paper is about

Objective To establish a HPLC method for the determination of linarin in Qingre Qushi granule.Methods The Hypersil C18(250 mm×4.6 mm,5 μm)was used.The mobile phase was consisted of acetonitrile-0.1% phosphoric acid(25∶75) with flow rate 1.0 ml/ml.The detection wavelength was at 334 nm.Results The method was linear within the range of 5.024～100.48 μg/ml,r=0.9999.The average recovery was 98.7%,and RSD was 1.2%.Conclusion The method is simple and accurate with a good repeatability,and it can be used for the control of Qingre Qushi granules.

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Available abstract

Objective To establish a HPLC method for the determination of linarin in Qingre Qushi granule.Methods The Hypersil C18(250 mm×4.6 mm,5 μm)was used.The mobile phase was consisted of acetonitrile-0.1% phosphoric acid(25∶75) with flow rate 1.0 ml/ml.The detection wavelength was at 334 nm.Results The method was linear within the range of 5.024～100.48 μg/ml,r=0.9999.The average recovery was 98.7%,and RSD was 1.2%.Conclusion The method is simple and accurate with a good repeatability,and it can be used for the control of Qingre Qushi granules.

Key concepts: Granule (geology), Repeatability, Chromatography, Phosphoric acid, Linear range, High-performance liquid chromatography, Chemistry, Linear relationship

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