高效液相色谱法测定乌梅透骨口服液中阿魏酸的含量

目的:研究乌梅透骨口服液中阿魏酸的含量测定方法,比较阿魏酸在不同溶剂中的稳定性。方法:采用反相高效液相色谱法测定。色谱柱为Kromasil C_(18),流动相为甲醇-水(30:70),流速为1ml/min,检测波长为324nm。结果:阿魏酸的线性范围为0.05μg～1.0μg(r=0.9 999),平均回收率为97.01％～101.53％,RSD<1.74％(n=3)。阿魏酸在不含酸混合溶剂(甲醇-水之比为1:4)中更稳定。结论:本方法简便、快速、重现性好,可为该产品的质量控制提供依据。

Quantitative Determination of Ferulic Acid in the Wumeitougu Oral Liquid with HPLC

OBJECTIVE: To study the quantitative determination method of ferulic acid in the Wumeitougu oral liquid,compare the stability of ferulic acid in different solvents. METHODS:The detecting conditions of RP -- HPLC were as followKromasil C_(18) column(4.6mm×200mm, 5μm); mobile phase: methanol-- water(30:70); flow rate: 1ml/ min: detecting waslength: 324nm. RESULTS: The calibration curve revealed linearity in the range of 0.05～1.0μg(r=0.9 999). The mean re?ery was 97.01%～101.53%. RSD<1.74% (n=3). Ferulic acid was more stable in the mixed solvent without acetic acid(m?anol:water was 1:4) .CONCLUSION:The detecting method is simple, rapid and satisfactory in Tepeatability, and can be ?for quality control of Wumeitougu oral liquid.