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2006•Huaxi yaoxue zazhiRequires access

Identification and determination of Dabaidu capsule

Ying Wang

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Abstract

OBJECTIVE To establish an identification and a determination method for Dabaidu capsule.METHODS Both TLC and HPLC method were used.RESULTS TLC method could indentify Pericarpium citri reticulatae,Radix paeoniae rubra and Radix Angelicae dahuricae,while HPLC method could quantitatively determine emodin and chrysophanol contents in Dabaidu capsule.The linear range for emodin was 0.01-0.08 μg(r=0.9994),the average recovery was 95.1%with RSD of 1.76%.The linear range for chrysophanol was 0.02-0.17 μg((r=0.9992),)the average recovery was 94.5%with RSD of 1.81%.CONCLUSION The indentification methods are reproducible and specific,the quantitative determination method is sensitive and accurate.

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OBJECTIVE To establish an identification and a determination method for Dabaidu capsule.METHODS Both TLC and HPLC method were used.RESULTS TLC method could indentify Pericarpium citri reticulatae,Radix paeoniae rubra and Radix Angelicae dahuricae,while HPLC method could quantitatively determine emodin and chrysophanol contents in Dabaidu capsule.The linear range for emodin was 0.01-0.08 μg(r=0.9994),the average recovery was 95.1%with RSD of 1.76%.The linear range for chrysophanol was 0.02-0.17 μg((r=0.9992),)the average recovery was 94.5%with RSD of 1.81%.CONCLUSION The indentification methods are reproducible and specific,the quantitative determination method is sensitive and accurate.

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Available abstract

OBJECTIVE To establish an identification and a determination method for Dabaidu capsule.METHODS Both TLC and HPLC method were used.RESULTS TLC method could indentify Pericarpium citri reticulatae,Radix paeoniae rubra and Radix Angelicae dahuricae,while HPLC method could quantitatively determine emodin and chrysophanol contents in Dabaidu capsule.The linear range for emodin was 0.01-0.08 μg(r=0.9994),the average recovery was 95.1%with RSD of 1.76%.The linear range for chrysophanol was 0.02-0.17 μg((r=0.9992),)the average recovery was 94.5%with RSD of 1.81%.CONCLUSION The indentification methods are reproducible and specific,the quantitative determination method is sensitive and accurate.

Key concepts: Emodin, Chemistry, Capsule, Chromatography, Radix (gastropod), High-performance liquid chromatography, Linear range, Linear relationship

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