降糖丸中葛根素的薄层扫描测定

摘要

OBJECTIVE： To develop a method of thin－ layer chromatographic scanning to determine the content of puerarin in Jiangtang pill METHODS： Silica GF254 thin－ layer was used， and the mobile phase consisted of chloroform－ methanol－ water(7∶ 2 5∶ 0 25) with the detection wave－ length of 254nm and the control wave－ length of 370nm RESULTS： The linear range of puerarin was 0 4～ 2 0μ g The mean recovery was 99 40％ (n=5) with RSD of 1 37％  CONCLUSION： This method is accurate， reliable and can be used for the determination of puerarin in Jiangtang pill%目的：建立薄层扫描法测定降糖丸中葛根素含量的方法。方法：固定相为硅胶 GF254，流动相为氯仿－甲醇－水（ 7∶ 2 5∶ 0 25），检测波长为 254nm，参比波长为 370nm。结果：葛根素在 0 4μ g～ 2 0μ g范围内呈良好的线性关系，平均回收率为 99 4％（ n=5）， RSD为 1 37％。结论：本方法准确、可靠，可用于测定降糖丸中葛根素的含量。