DETERMINATION OF HEAVY-METALS IN 2 BIOLOGICAL AND IN 2 GEOLOGICAL STANDARD MATERIALS BY ATOMIC-ABSORPTION SPECTROSCOPY

被引：8

作者：

ABORADY, MDK

机构：

[1] Institut für Physische Geographie an der Universität Frankfurt/Main, Frankfurt/Main, D-6000

来源：

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE | 1979年 / 296卷 / 05期

关键词：

Atom-Absorptions-Spektroskopie; Aufschluß; Matrixeffekt; Deuterium-Untergrundkompensation; Best. von Cadmium; Kupfer; Nickel; Blei und Zink in Biolog. Material; Geolog; Materialien;

D O I：

10.1007/BF00479978

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Concentrations of the elements Cd, Cu, Ni, Pb and Zn were investigated in the International Biological Standard (IBS) of Bowen, in the NBS Standard Reference Materials 1571 (Orchard Leaves), in Lime Stone and Clay Slate Standards by means of flame atomic-absorption spectroscopy. The elements were determined in plant samples after digestion in nitric and perchloric acids, and in geological materials (geological standards and river sediments) after digestion in a 3:1 mixture of hydrochloric and nitric acids. The influence on the absorbance of the matrix was tested. Considerable interferences were found in determinations of cadmium and lead, especially when the concentration of elements was very low. These interferences could be eliminated with the help of a Deuterium Background Corrector. © 1979 Springer-Verlag.

引用

页码：380 / 382

页数：3