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。
RESULTS By GC-MS, 29 volatile compounds in Platycladi Cacumen treated with head-space injection were identified, while 34 volatile compounds identified with steam distillation;
结果 采用顶空进样技术，可鉴定出侧柏叶中29个挥发性化学成分；采用水蒸气蒸馏法可鉴定出34个挥发性化学成分；
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