火焰原子吸收光谱法测定芳纶中钙含量

摘要

介绍了火焰原子吸收光谱法测定芳纶中钙含量的分析方法,探讨了酸性介质浓度对测定结果的影响,比较了湿法消化和干法灰化的数据。结果认为,该方法重复性相对偏差小于5%,回收率在96.1%～101.2%之间,方法的灵敏度为0.07μg/mL,检出限为0.010 5μg/mL。该方法简单、快速、准确,满足检测要求。%Abstract: Introduce using flame atomic absorption spectrometrydetermine the calcium content of the PPTA analysis method. In this tarticlediscussthe acid medium concentration on the influence of the determination results . The wet ashing data and dry ashing data are compared. This method repeatability relative deviation is less than 5%, recovery is between 96. 1% - 101.2%, the sensitivity of the method is 0.07 μg/mL, detection limit is 0. 010 5 μg/mL, the method is simple, rapid and accurate, and meet the detection requirements.