HPLC测定洋金花中东莨菪碱和阿托品的含量

目的：建立测定洋金花中东莨菪碱和阿托品含量的反相高效液相色谱方法。方法：采用Hypersil BDS C₁₈柱(4.6 mm×250 mm, 5 μm),流动相甲醇-水（40∶60,水中含0.02 mol·L^-1醋酸钠、0.02％三乙胺、用冰醋酸调pH至6.0）,流速1.0 mL·min^-1,检测波长215 nm,柱温室温。结果：东莨菪碱和阿托品的平均回收率分别为99.6%和100.4%；RSD为1.8%和1.5%。结论：该方法简便、准确,灵敏度高,重复性好。

Determination of scopolamine and atropine in Flos Daturae by RP-HPLC

OBJECTIVE: To develop a quantitative analytical procedure of scopolamine and atropine in Flos Daturae using RP-HPLC. METHOD: The two alkaloids were separated on a Hypersil BDS C18 column (4.6 mm x 250 mm, 5 microm) with a mobile phase of 0.02 mol x L(-1) sodium acetate buffer (containing 0.02% triethanolamine and the pH was adjusted to 6.0 with acetic acid)-methanol (60:40) and a detection wavelength of 215 nm. The flow rate was 1.0 mL x min(-1) and the column temperature was maintained at room temperature. RESULT: The mean recovery was (99.6 +/- 1.8)% for scopolamine and (100.4 +/- 1.5)% for atropine. CONCLUSION: This method was simple, accurate and sensitive.