ABSTRACT
To establish the quality standard for Zhike Xiaoyan Zhitong lotion. Methods: Phellodendri chinensis Cor-tex, Angelicae sinensis Radix and Astragali Radix in the preparation were identified by TLC. The content of berberine hydrochloride, the effective component in Phellodendri chinensis Cortex, was determined by HPLC with the chromatographic conditions as follows: an Agilent 5 TC-C18 column (250 mm × 4. 6 mm, 5 μm) was used, the mobile phase was acetonitrile-0. 05 mol·L-1 potassium dihydro-gen phosphate (30∶70) with the flow rate of 1. 0 ml·min-1 , the detection wavelength was 265 nm, and the column temperature was at 30 ℃. Results:The spots of Phellodendri chinensis Cortex, Angelicae sinensis Radix and Astragali Radix in Zhike Xiaoyan Zhitong lotion on TLC were clear with strong specificity and without any interference from the negative controls. There was a good linear rela-tionship for berberine hydrochloride within the range of 0. 029-3. 628 μg(r=0. 999 9), and the average recovery was 97. 83% (RSD=2. 05%, n=6). Conclusion:The qualitative and quantitative methods are accurate, reliable and repeatable, which can effectively control the inherent quality of Zhike Xiaoyan Zhitong lotion.