Chemical characterization of municipal solid waste incineration residue: Dissolution of elements with a microwave-dilute acids digestion technique compared to conventional methods

被引:5
作者
Dugenest, S [1 ]
Olle, M [1 ]
Ribes, A [1 ]
Grenier-Loustalot, MF [1 ]
机构
[1] CNRS, Serv Cent Anal, F-69390 Lyon, France
关键词
fly ash; filter cake; microwave acid digestion; ICP-AES; HG-QFAAS;
D O I
10.1051/analusis:1998170
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The aim of this work was to evaluate the focused microwave technique in an open system for the rapid dissolution of elements in fly ash and filter cakes, in comparison to conventional wet and dry methods. The method involved 15 minutes of hearing in microwave system in 2 N nitric or hydrochloric acid. It was tested on different types of samples and led to the dissolution of Ca, Na, K, Zn, Pb, As with 2 N HNO3 or HCl and Cd, Hg with 2 N HNO3 for subsequent determination by atomic emission or absorption spectrometry. Thereby this method represents a rapid sample preparation technique for chemical analyses.
引用
收藏
页码:256 / 260
页数:5
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