Study on quality standard of Liancao Oral Liquid / 国际中医中药杂志

Objective To establish the quality standard of Liancao Oral Liquid. Methods The content of scutellarin and p-Coumaric acid in Liancao Oral Liquid was determined by HPLC. Results There was a good linearity for scutellarin in the range of0.208～1.042 μg (r=0.9999) (n=5) , The average recovery rate was 100.3%, RSD=0.81% (n =6) ; There was a good linearity for p-Coumaric acid in the range of 0.079～0.394 μg (r=0.9994) (n=5) , The average recovery rate was 99.6%, RSD=0.94% (n=6) . Conclusion To develop a method of determining the content of Liancao Oral Liquid. The methods are simple, effective with good reproducibility, which can be used for the quality control of Liancao Oral Liquid.