Objective: We detected the content of methylene chloride and diethylene oxide in Ceftizoxime Sodium using head-space GC method.

目的：建立一种气相色谱法测定原料药头孢唑肟钠中二氯甲烷和四氢呋喃有机溶剂残留量的方法。

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Methods: Use Head- space automatic injection method, isolating with the nonpolarity flexibility capillary column, calculating with external method.

方法：采用外标法顶空自动进样，在非极性弹性毛细管柱上进行分离，效果良好。

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Methods:The samples were injected into HP-5 capillary colnmn by head- space sampler and analysed with FID detector with standard addition method.

方法：用 HP-5毛细管气相色谱柱，顶空进样，FID 检测器，以标准溶液加入法进行计算。

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