MODIFIED ELECTRICAL HEATING-SYSTEM FOR HYDRIDE GENERATION ATOMIC-ABSORPTION SPECTROMETRY AND ELABORATION OF A DIGESTION METHOD FOR THE DETERMINATION OF ARSENIC AND SELENIUM IN BIOLOGICAL-MATERIALS

被引：31

作者：

MAYER, D

HAUBENWALLNER, S

KOSMUS, W

BEYER, W

机构：

[1] KARL FRANZENS UNIV,INST ANALYT CHEM,UNIV PLATZ 1,A-8010 GRAZ,AUSTRIA

[2] KARL FRANZENS UNIV,INST MED CHEM,A-8010 GRAZ,AUSTRIA

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 268卷 / 02期

关键词：

ATOMIC ABSORPTION SPECTROMETRY; ARSENIC; HYDRIDE GENERATION; MICROWAVE DIGESTION; SELENIUM;

D O I：

10.1016/0003-2670(92)85227-W

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A modified electrical heating system for hydride generation atomic absorption spectrometry has been designed. The heating block permits a rapid and convenient change of the quartz tube in order to clean and condition its surface. Frequent conditioning guarantees high and constant measurement sensitivity. Further, an inexpensive and simple microwave digestion procedure has been developed. The methods were tested by analysing reference materials and proved to be appropriate for trace concentrations of arsenic and selenium.

引用

页码：315 / 321

页数：7

共 38 条

[1] DETERMINATION OF ANTIMONY(III), ANTIMONY(V), AND METHYLANTIMONY SPECIES IN NATURAL-WATERS BY ATOMIC-ABSORPTION SPECTROMETRY WITH HYDRIDE GENERATION [J].