ICP-OES测定塑胶跑道中的9种可溶性重金属

Determination of 9 Soluble Heavy Metals from Plastic Runway by ICP-OES

建立了电感耦合等离子体发射光谱仪(ICP-OES)同时测定塑胶跑道中砷、钡、镉、铬、汞、铅、硒、锑、锡9种可溶性重金属元素的方法,对影响测试的各因素进行了研究。结果表明,基体元素对测定没有明显干扰,在选定的波长下测定,元素间也没有干扰。该方法快速,准确可靠,各元素检出限为0.006~0.025μg/mL,加标回收率为93.1%~101.7%,相对标准偏差(RSD,n=6)均小于5.0%,适用于塑胶跑道可溶性重金属的日常检验。

A method for the determination of 9 soluble heavy metals of As,Ba,Cd,Cr,Hg,Pb,Se,Sb,Sn from plastic runway by ICP-OES was proposed.The influence on the experiment had been investigated.With the optimal working conditions,the matrix elements did not interfere with the test.There was no interference between elements as the dedicated wavelength.The method is rapid and accurate.The detection limits of the detected elements were 0.006~0.025μg/mL,and the recoveries were 93.1 %~101.7 %,the relative standard deviations(RSD,n=6) were less than 5%.The method is suitable for determination of the soluble heavy metals from plastic runway.