浅谈原子吸收分光光度法测定塑胶跑道中可溶性重金属含量

摘要

本文应用了原子吸收法同时测定塑胶跑道成品中3种可溶性重金属铅、镉、铬的含量,方法快捷简便.方法的检出限分别为铅1mg/kg,镉0.1mg/kg,铬0.8mg/kg;方法的精密度分别为铅1.8%,镉0.9%,铬1.2%;回收率分别为铅98.0%,镉94.3%,铬103.7%.达到了合成跑道中可溶性重金属的分析要求,效果满意.%In this paper, the content of 3 kinds of soluble heavy metals Pb, Cd and Cr in the plastic track was determined by atomic absorption spectrophotometry.The detection limits of the method were Pb 1mg/kg, Cd 0.1mg/kg and Cr 0.8mg/kg respectively, and the precision of the method was Pb 1.8%, Cd 0.9%, Cr 1.2%respectively, and the recovery of the method was about Pb 98.0%, Cd 94.3%, Cr 103.7%respectively.The analytical requirements of soluble heavy metals in the plastic track were satisfied.