摘要
目的:建立洁肤液中大黄素的含量测定方法。方法:采用RP-HPLC法进行测定,色谱柱为SHIMADZU C18(250mm×4.6mm,5μm);流动相为甲醇-0.1%磷酸(85∶15);检测波长为254nm;柱温为25℃。结果:洁肤液中大黄素的线性范围为3.30~33.0μg/mL,r=0.9999,平均回收率为99.05%,RSD值为0.95%。结论:该方法简便,结果准确,重现性好,可作为洁肤液的质量控制方法。
Objective :To establish a method for determining the content of emodin in cleansing liquid. Methods:Reverse -phase high- performance liquid chromatography was performed on a Shimadzu C ls column (250mm×4.6mm,5μm) with a mobile phase of methanol -0. 1% phosphoric acid (85:15 ) at a detection wavelength of 254 nm and a column temperature of 25℃. Results:A linear relationship was found within an emodin content range of 3.30 -33.0 μg/ml (r = 0. 9999 ) ;the average recovery rate was 99. 05% , with a relative standard deviation of 0. 95%. Conclusion:This method is simple, accurate, and repeatable and can be used for the quality control of cleansing liquid.
出处
《湖南中医杂志》
2014年第9期155-156,共2页
Hunan Journal of Traditional Chinese Medicine
关键词
洁肤液
大黄素
HPLC法
cleansing liquid
emodin
high - performance liquid chromatography