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Background  Benzoylmesaconine (BMA) is the main  Aconitum  alkaloid in  Radix Aconiti Lateralis Preparata  ( Fuzi , aconite roots) with potent pharmacological activities, such as analgesia and anti-inflammation. The present study developed a simple and reliable method using BMA as a marker compound for the quality control of processed aconite roots and their products.    Methods  After extraction, a high-performance liquid chromatography (HPLC) determination of BMA was conducted on a RP-C 18  column by gradient elution with acetonitrile and aqueous phase, containing 0.1% phosphoric acid adjusted with triethylamine to pH 3.0.    Results  A distinct peak profile was obtained and separation of BMA was achieved. Method validation showed that the relative standard deviations (RSDs) of the precision of BMA in all intra-day and inter-day assays were less than 1.36%, and that the average recovery rate was 96.95%. Quantitative analysis of BMA showed that the content of BMA varied significantly in processed aconite roots and their products.    Conclusion  This HPLC method using BMA as a marker compound is applicable to the quality control of processed aconite roots and their products.

chinese medicine

An optimized high-performance liquid chromatography (HPLC) method for benzoylmesaconine determination in Radix Aconiti Lateralis Preparata (Fuzi, aconite roots) and its products