目的:建立头孢地嗪钠含量测定的紫外分光光度法。方法:取样品制成20μg/ml的溶液,在262 nm波长处测定吸收度,分别采用回归方程和吸收系数计算其含量,并用HPLC法进行比较。结果:两法的平均回收率分别为99.0％,999％;RSD分别为0.6％,0.4％。结果基本一致。结论:本法快速、简便、准确。 Objective: To establish a UV spectrophotometric method for the determination of cefodizime sodium. Methods: The sample was made into 20μg / ml solution and the absorbance was measured at 262 nm. The content was calculated by regression equation and absorption coefficient respectively and compared by HPLC method. Results: The average recoveries of the two methods were 99.0% and 999%, respectively. The RSDs were 0.6% and 0.4% respectively. The results are basically the same. Conclusion: This method is fast, easy and accurate.