HPLC测定鼻可灵喷雾剂中氧氟沙星和盐酸麻黄碱的含量

The determination of ofloxacin and ephedrine hydrochloride in Bikeling nasal drops by HPLC

采用高效液相色谱法,同时测定了鼻可灵喷雾剂中氧氟沙星和盐酸麻黄碱的含量。色谱柱为Hypersil BDS(4mm×250mm),流动相为0.1％三乙胺(用磷酸调pH至3.2)-乙腈(85:15),检测波长为256nm。两被测组分的回收率分别为氧氟沙星100.2％,盐酸麻黄碱100.7％,日内、日间偏差均小于5％。

Ofloxacin and ephedrine hydrochloride in Bikeling nasal drops were simultaneously determined by HPLC. The column was hypersil BDS(4mm x 250mm). The mobile phase was 0. 1% triethylamine(adjusted to pH 3.2 with phosphoric acid)-acetonitrile(85:15). The detective wavelength was 256nm and the flow rate was 1ml/min. The average recovery and relative standard deviation were 100. 2%, 0. 87% for ofloxacin and 100. 6%, 1.55% for ephedrine hydrochloride. The relative standard deviation of within-day and betwwen-day were all less than 5%.