高效富集-火焰原子吸收法测定海水中微量重金属的方法改进

Efficient Enrichment-Method Improvement in Determining Trace Heavy Metal in Sea Water with FAAS

本文应用高效富集技术,并加以改进,用火焰原子吸收法测定海水中的痕量铜、锌、铅、镉,检出限分别为0.3,1.6,1.1和0.2μg/L。操作简便、易于掌握。免去了萃取富集的繁琐操作,避免使用有毒有害的有机溶剂,克服了无火焰法精密度差的缺点。

We determined trace Cu,Pb,Zn,Cd in seawater with FAAS of efficient enrichment technology.The detection limit are 0.3,1.6,1.1and 0.2μg / L.This method is easy to control,avoids harmful organic solvents,and overcome shortcoming of low accuracy of no flame method.