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2008•Yunnan Journal of Traditional Chinese Medicine and Materia MedicaRequires access

Determination of Liquritin in New Antasthmatic Liquid Mixture by HPLC

LI Ren-qiu

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Abstract

Objective:To establish a method of HPLC for the determination of liquritin in new antasthmatic liquid mixture. Methods: The Dikma C18 column (4.6mm×250mm, 5μm) was used. The mobile phase was acetonitrile-0.5% glacial acetic acid (20:80). The flow rate was 1.0ml/min with a detective wavelength of 276nm and a column temperature of 30oC. Results: The sample volume of liquiritin at the range of 0.02-1.0μg, ( r=0.99990) has a good linear relation with the peak area. The average recovery rate was 99.27%, RSD=0.67% (n=9). Conclusion: The method is convenient, accurate and exclusive with good reappearance and can be used to control the quality of reproducible the new antasthmatic liquid mixture.

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What this paper is about

Objective:To establish a method of HPLC for the determination of liquritin in new antasthmatic liquid mixture. Methods: The Dikma C18 column (4.6mm×250mm, 5μm) was used. The mobile phase was acetonitrile-0.5% glacial acetic acid (20:80). The flow rate was 1.0ml/min with a detective wavelength of 276nm and a column temperature of 30oC. Results: The sample volume of liquiritin at the range of 0.02-1.0μg, ( r=0.99990) has a good linear relation with the peak area. The average recovery rate was 99.27%, RSD=0.67% (n=9). Conclusion: The method is convenient, accurate and exclusive with good reappearance and can be used to control the quality of reproducible the new antasthmatic liquid mixture.

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Available abstract

Objective:To establish a method of HPLC for the determination of liquritin in new antasthmatic liquid mixture. Methods: The Dikma C18 column (4.6mm×250mm, 5μm) was used. The mobile phase was acetonitrile-0.5% glacial acetic acid (20:80). The flow rate was 1.0ml/min with a detective wavelength of 276nm and a column temperature of 30oC. Results: The sample volume of liquiritin at the range of 0.02-1.0μg, ( r=0.99990) has a good linear relation with the peak area. The average recovery rate was 99.27%, RSD=0.67% (n=9). Conclusion: The method is convenient, accurate and exclusive with good reappearance and can be used to control the quality of reproducible the new antasthmatic liquid mixture.

Key concepts: Chromatography, Liquiritin, High-performance liquid chromatography, Acetonitrile, Acetic acid, Chemistry, Analytical Chemistry (journal), Volumetric flow rate

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