摘要
目的:建立黄芩苷粗品中黄芩苷、黄芩素、汉黄芩苷和汉黄芩素含量的高效液相色谱(HPLC)测定方法,以便控制其质量。方法:固定相用Agilent ZORBAX SB-C18柱(5μm,4.6mm×250mm),苷流动相为甲醇-水-冰醋酸(49:51:0.2),苷元流动相为甲醇-水-冰醋酸(61:39:0.2),检测波长为275nm。结果:黄芩苷、黄芩素、汉黄芩苷和汉黄芩素线性范围分别是0.102~1.020μg(r=0.9997),0.051~0.510μg(r=0.9994),0.01~0.51μg(r=0.9995),0.02~0.20μg(r=0.9999);平均回收率(n=5)分别为99.12%(RSD为1.55%),101.60%(RSD为2.67%),102.27%(RSD为1.92%/40)和98.51%(RSD为3.13%)。结论:本方法简便、准确,可用于黄芩苷粗品的质量控制。
OBJECTIVE To establish an HPLC method for determination of baicalin, baicalein, wogonoside and wogonin, in crude baicalin. METHODS Using Agilent ZORBAX SB-C18 column(5 μm,4. 6 min×250 mm). The mobile phases for glycosides consisted of methanol-water-acetic acid(49: 51:0. 2). The mobile phases for aglycones consisted of methanol-water-acetic acid(61:39: 0. 2). The UV detector at 275 nm. RESULTS The linear ranges of baicalin, baicalein, wogonoside and wogonin were 0.102 -1. 020μg( r = 0.9997),0.051 - 0.510μg(r =0.9994),0.01 -0.51 μg(r = 0.9995),0.02- 0.20μg(r = 0. 999 9),respectively. The average recoveries (n = 5) of baicalin, baicalein, wogonoslde and wogonin were 99. 12% (RSD = 1.55 % ), 101.60 % (RSD = 2. 67 % ), 102. 27 % ( RSD = 1.92 % ) and 98. 51% (RSD = 3. 13 % ), respectively. CONCLUSION The method is simple,accurate and can be used to determine the contents of crude baicalin.
出处
《中国医院药学杂志》
CAS
CSCD
北大核心
2007年第2期191-193,共3页
Chinese Journal of Hospital Pharmacy