摘要
本文对测定大气颗粒物中金属元素样品的前处理方法:硫酸-灰化法,常压混酸消解法,高压消解法,索氏提取法进行了探讨。测定了Cu,Pb,Cd,Cr,Be,Co,Ni元素,对各方法的空白值,精密度、准确度,以及样品测定等进行了对比与评价。
This article presents a discussion on four pretreat-ment methods of analysing metal elements in air particu-late samples. In determination of Cu, Ph, Cd, Cr, Be, Co and Ni, the four methods that are sulfate-ash method, acid mixture digestion, high pressure wet digestion and Soxhlet's extraction have beeen compared. The results demonstrate that the method of high pressure wet disges-tion with low blank is easy to handle and has a desirable precision (CV% 2.3-7.1%) and high recovery (91 -117%).
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1990年第3期49-53,共5页
Environmental Science
