| 测定大气颗粒物中金属元素的样品前处理方法比较 |
| 摘要点击 778 全文点击 502 投稿时间：1989-07-26 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 |
| 英文关键词 |
|
| 中文摘要 |
| 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。 |
| 英文摘要 |
| 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 disgestion with low blank is easy to handle and has a desirable precision(CV% 2.3-7.1%)and high recovery(91-117%). |
|
|
|
