Objective: To investigate the influence of sulfur-fumigated Paeoniae Radix Alba on the contents of main constituents in Guizhi Decoction.
Methods: HPLC was applied to the simultaneous determination and comparative analysis of ten main indicative components in Guizhi Decoction contained sun-dried and sulfur-fumigated Paeoniae Radix Alba. The analysis was performed on a Kromasil C18 column (250 mm x 4.6 mm, 5 μm) with the mobile phase consisting of acetonitrile-0.1% aqueous formic acid. The flow rate was 1.0 mL/min and the column temperature was 30 °C. The detection wavelengths were set at 254 nm and 280 nm, respectively. 20 μL was injected for analysis with gradient elution.
Results: There were obvious differences existed between the concentrations of ten main indicative components in Guizhi Decoction contained sun-dried and sulfur-fumigated Paeoniae Radix Alba.
Conclusion: Sulfur-fumigated Paeoniae Radix Alba can influence the main effective constituents contained in Guizhi Decoction in quantity. The absence in the study of prescriptions affected by sulfur-fumigation is filled up through the investigation of the chemical basis of Guizhi Decoction influenced by sulfur-fumigated Paeoniae Radix Alba, and also strong evidences are offered to the further regulation and supervision of sulfur-fumigation in herbal medicines.
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