顶空气相色谱技术测定聚乙烯中挥发性烃类

The Determination of Volatile Hydrocarbons in Polyethylene by Head Space Gas Chromatograph

本文研究了顶空色谱技术在聚乙烯中挥发性烃类测定中的应用,考察了方法并进行了性能测试。检测限为1.0×10-6μg/mL,标准加入回收率在98.50%-100.9%之间。变异系数(n=5)在0.11%～1.90%之间,线性关系范围为10×104。

The application in the determination of volatile hydrocarbons in polyethylene by head space gas chromatograph was studied. The method capability were discussed. The Detection limit was 1.0×10^-6μg/mL, standard addition recovery were between 98.50%-100.9%, the CV（n=5） were between 0.11% - 1.90%.