赵辉 吴燕 刘丽平 张福成

    [摘要] 目的：摸索盐酸左西替利嗪片体外溶出度测定条件。方法：依据《中国药典》2010年版和有关的参考文献，采用正交试验，考察溶出介质(0.1 mol/L盐酸溶液、pH 6.8的磷酸盐缓冲液及水)、转速(50、75、100 r/min)、取样时间(5、15、30 min)三个因素对盐酸左西替利嗪片体外溶出度测定的影响，采用紫外分光光度法，在230 nm波长下测定吸光度并计算溶出度。结果：盐酸左西替利嗪检测浓度为2~10 μg/ml(r=0.999 8)，平均回收率为99.98%，RSD=0.28%；选择桨法，以水为溶出介质，转速为75 r/min，取样时间点为30 min是盐酸左西替利嗪片溶出度测定条件。结论：本法简便、可靠、准确，适合盐酸左西替利嗪片溶出度的测定。

    [关键词] 盐酸左西替利嗪片；溶出度；正交试验；紫外分光光度法

    [中图分类号] R917 [文献标识码]A[文章编号]1673-7210(2011)11(c)-034-03

    Conditions test of Levocetirizine Dihydrochloride Tablets dissolution

    ZHAO Hui, WU Yan, LIU Liping, ZHANG Fucheng

    Department of Pharmacy, General Hospital of Air Force, Beijing 100142, China

    [Abstract] Objective: To explore the conditions test of Levocetirizine Dihydrochloride Tablets dissolution in vitro. Methods: According to the methods of Chinese Pharmacopoeia (2010 edition) and other references, the influence to the dissolution conditions of Levocetirizine Dihydrochloride Tablets, such as dissolution mediums (0.1 mol/L hydrochloric acid solution, pH 6.8 phosphate buffer solution, water as medium), rotation speeds (50, 75, 100 r/min), and sampling time (5, 15, 30 min) were investigated by orthogonal experiment. The absorbance and release rate of solution were determined by UV spectrophotometry at 230 nm. Results: The assay displayed a good linearity over the concentration range of 2-10 μg/ml (r=0.999 8) with an average recovery was 99.98% (RSD=0.28%). Paddle method was adopted by using water as the solvent, and the rotation speed at 75 r/min with sampling time was 30 min. Conclusion: The method is simple, reliable and accurate, and it can be applied to determine dissolution of Levocetirizine Dihydrochloride Tablets. ......