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采用双波长薄层扫描法 ,测定粉刺净颗粒剂中盐酸小檗碱的含量。展开剂为正丁醇 -醋酸 -水 (7∶ 1∶ 2 ) ,回归方程为 M=1.42 3× 10 4A+ 2 .5 6 6× 10 3,r=0 .9915 ,线性范围 1～ 5 μg/ ml
The dual-wavelength thin-layer scanning method was used to determine the content of berberine hydrochloride in acne net granules. The developing agent was n-butanol-acetic acid-water (7:1:2), the regression equation was M=1.42 3×10 4A+ 2 .5 6 6×10 3, r=0.9915, and the linear range was 1～5 μg/. Ml