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作 者:何洋[1] 王冬梅[1] 董振敏[2] 申涛[1] 栾爽[1] 赵怀清[1]
机构地区:[1]沈阳药科大学药学院,辽宁沈阳110016 [2]辽河油田卫生事业管理部,辽宁盘锦124010
出 处:《沈阳药科大学学报》2007年第8期491-494,共4页Journal of Shenyang Pharmaceutical University
摘 要:目的 建立丹灯通脑胶囊中野黄芩苷和丹酚酸B含量的测定方法。方法 采用HPLC法,色谱柱为Diamonsil C18(200 mm×4.6 mm,5μm),流动相为体积分数为2%的冰醋酸水溶液(溶液A)和乙腈-甲醇(体积比为1:1,溶液B),进行梯度洗脱,在0~15 min,溶液B体积分数由30%线性改变至36%;15~25 min,维持溶液B体积分数为36%不变;25~30 min,溶液B体积分数由36%线性改变至30%,流速为1.0 mL.min-1,检测波长为280 nm,柱温为35℃。结果 野黄芩苷和丹酚酸B分别在5.7~57.0 mg·L^-1和22.2~222.0 mg·L^-1内与色谱峰面积线性关系良好,相关系数r分别为0.9998和0.9999。野黄芩苷和丹酚酸B的平均回收率分别为99.7%和100.3%,RSD(n=9)分别为0.9%和0.5%。结论 HPLC法简便、专属、重复性好,可用于丹灯通脑胶囊中野黄芩苷和丹酚酸B的含量测定。Objective To develop a method for determination of scutellarin and salvianolic acid B in Dandengtongnao (traditional Chinese medicines) capsules by HPLC. Methods The analysis was carried on a Diamonsil Ca8(200 mm × 4.6 mm, 5 μm, Dikma)column. The mobile phase was composed of 5% acetic acid(A) and acetonitrile-methanol(1 : 1) with gradient elution(0 - 15 min, 30 % - 36 % B, 15 - 25 min, 36 % B, 25 - 30 min, 30 % - 36 % B, volumn fraction), the flow rate was 1.0 mL·min^-1. The detection wavelength was set at 280 nm and column temperature was 35 ℃. Results The linear range was 5.7 - 57.0 mg·L^-1 (0.999 8) for scutellarin, 22.2 - 222.0mg·L^-1 (0.999 9) for salvianolic acid B. The average recoveries were 99.7 % ( n = 9, RSD = 0.9 % ) for scutellarin and 100.3 % ( n = 9, RSD = 0.5 % ) for salvianolic acid B. Conclusions The method is convenient, selective and reproducible for determination of scutellarin and salvianolic acid B in Dandengtongnao capsules by HPLC.
关 键 词:丹灯通脑胶囊 野黄芩苷 丹酚酸B 高效液相色谱法
分 类 号:R917[医药卫生—药物分析学]
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