Improvement of Quality Standard of Reduqing Oral Liquid / 中国中医药信息杂志

ABSTRACT

Objective To improve the quality standard of Reduqing Oral Liquid. Methods TLC was used to identify the featured spots of Glycyrrhizae Radix et Rhizoma, Belamcandae Rhizoma and Scutellariae Radix;HPLC method was usded to detect the contents of Baicalin in Reduqing Oral Liquid. Results TLC could identify the featured spots of Glycyrrhizae Radix et Rhizoma, Belamcandae Rhizoma and Scutellariae Radix; Baicalin was detected in range of 53.60–536.00 μg/mL with good linear relationship (r=0.999 99), the average recovery rate was 99.85%, and RSD was 0.63%(n=6). Conclusion The method is simple, accurate and reliable, which can be applied to the quality control of Reduqing Oral Liquid.