微波消解-石墨炉原子吸收分光光度法测定输液容器用聚丙烯粒料中钛残留含量及迁移量

Determination of Ti and Ti Migration into Polypropylene Pellets for Infusion Container by Microwave Digestion-GFAAS

关键词:  石墨炉原子吸收分光光度法  输液容器用聚丙烯粒料  钛  迁移

Key words:  GFAAS  polypropylene pellets for infusion container  Ti  migration

摘要:

目的 建立输液容器用聚丙烯粒料中钛残留含量及输液袋中钛迁移量的石墨炉原子吸收分光光度法的测定方法。方法 采用微波消解对样品进行消解处理，石墨炉原子吸收光谱法测定样品中钛含量。结果 钛在0~200 ng·mL^-1内呈良好的线性关系(r=0.999 9)；钛含量测定的平均回收率为97.22%(RSD=3.91%)。结论 该方法准确、灵敏、简便，适用于对输液容器用聚丙烯粒料中钛残留含量及钛向输液中迁移量的测定。

Abstract:

OBJECTIVE To develop a method for determination of Ti and Ti migration into polypropylene pellets for infusion container by GFAAS. METHODS The sample was digested by microwave digestion, using GFAAS to determine the content of Ti. RESULTS The method has a linear range of 0?200 ng·mL^-1(r=0.999 9). The average recovery of Ti was 97.22%(RSD=3.91%). CONCLUSION This method is accurate, sensitive, simple, it can be used for determination of Ti and Ti migration into polypropylene pellets for infusion container.