A solid solution theory for matrix modification in electrothermal atomic absorption spectrometry

被引：3
|
作者：
Mandjukov, PB [1 ]
Tsakovski, SL [1 ]
Simeonov, VD [1 ]
Stratis, JA [1 ]
机构：
[1] ARISTOTELIAN UNIV THESSALONIKI,SCH CHEM,ANALYT CHEM LAB,GR-54006 THESSALONIKI,GREECE
来源：
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1995年 / 50卷 / 13期
关键词：
Cerium(IV) modifier; ETAAS; matrix modification; regular solution theory; solid solution; thermodynamical model;
D O I：
10.1016/0584-8547(95)01335-0
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The kinetics of evaporation of the volatile analytes Pb and Cd in the presence of Ce(IV) introduced as the chemical modifier (NH4)(2)Ce(NO3)(6) have been studied. The experimental results obtained are found to be in acceptable agreement with the regular solution model applied as a theoretical approach. Comparison with the results from previous investigation on the Pb/W analyte-modifier couple is made. An attempt is also made to explain some effects connected with the application of modifiers as described in the literature within the framework of the present model.
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页码：1733 / 1746
页数：14
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