Atomic absorption spectrometry using tungsten and molybdenum tubes as metal atomizer

被引：2
作者：
Kaneco, Satoshi
Katsumata, Hideyuki
Suzuki, Tohru
Ohta, Kiyohisa
机构：
[1] Mie Univ, Dept Chem Mat, Grad Sch Engn, Tsu, Mie 5148507, Japan
[2] Mie Univ, Environm Preservat Ctr, Tsu, Mie 5148507, Japan
来源：
BUNSEKI KAGAKU | 2007年 / 56卷 / 07期
关键词：
atomic absorption spectrometry; metal tube atomizer; trace metals; tungsten; molybdenum;
D O I：
10.2116/bunsekikagaku.56.535
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We have developed a metal tube atomizer for the electrothermal atomization atomic absorption spectrometry (ETA-AAS). Tungsten, molybdenum, platinum tube atomizers were used as the metal atomizer for ETA-AAS. The atomization characteristics of various metals using these metal tube atomizers were investigated. The effects of heating rate of atomizer, atomization temperature, pyrolysis temperature, argon purge gas flow rate and hydrogen addition on the atomic absorption signal were investigated for the evaluation of atomization characteristics. Moreover, ETA-AAS with metal tube atomizer has been combined with the slurry-sampling techniques. Ultrasonic slurry-sampling ETA-AAS with metal tube atomizer were effective for the determination of trace metal elements in biological materials, calcium drug samples, herbal medicine samples, vegetable samples and fish samples. Furthermore, a preconcentration method of trace metals involving adsorption on a metal wire has been applied to ETA-AAS with metal tube atomizer.
引用
收藏
页码：535 / 546
页数：12
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