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头孢唑啉钠注射剂的含量测定药典采用高效液相色谱法,不适合基层单位应用。根据头孢唑啉钠具有族光性的特点,采用旋光法测定其含量,简便迅速,省时,结果可靠,现介绍如下。1.仪器与试药1·1 W22—1型自动旋光仪。1·2 头孢唑啉钠标准品,头孢唑啉钠注射剂为不同批号。2.实验方法与结果2·1 回归方程的建立:精密量取头孢唑啉钠对照品2.5g,置50ml量瓶中,加蒸馏水溶解并稀释至刻度、摇
Determination of cefazolin sodium injection Pharmacopoeia using high performance liquid chromatography, not suitable for grass-roots unit applications. Cefazolin sodium according to the characteristics of a family of light, using the optical method for the determination of its content, simple and quick, time-saving, the results are reliable, are presented below. 1. Instruments and reagents 1.1 W22-1 automatic polarimeter. Cefazolin sodium standard, cefazolin sodium injection of different batches. 2. Experimental methods and results 2.1 The establishment of regression equation: Precision taking cefazolin sodium reference substance 2.5g, set 50ml volumetric flask, add distilled water and dilute to the mark, shake