高效液相色谱法测定高密度聚乙烯中抗氧化剂1010的含量

Determination of antioxidants 1010in high density polyethylene by high performance liquid chromatography

利用高效液相色谱法[1]分析高密度聚乙烯中抗氧化剂1010的含量,样品采用液氮保护粉碎成粉末,以氯仿为溶剂,在80℃的水浴锅中回流萃取6小时后,以丙酮定容至100mL,然后采用0.45μm的有机膜过滤,直接进样,方法回收率高,重现性好。

This paper introduces the content determination of antioxidants 1010 in high density polyeth-ylene samples by HPLC ,The recove are at the range of 90%-95% .The result is accurate and stabilized .