MICROSCALE PRECONCENTRATION BY LIQUID-LIQUID-EXTRACTION OF CADMIUM IN INDIUM AND NICKEL

被引：5

作者：

TANAKA, T

MAKINO, N

MIZUIKE, A

机构：

[1] Faculty of Engineering, Science University of Tokyo, Tokyo, 162, Kagurazaka, Shinjuku-ku

来源：

MIKROCHIMICA ACTA | 1992年 / 106卷 / 3-6期

关键词：

MICROSCALE PRECONCENTRATION; LIQUID-LIQUID EXTRACTION; ULTRATRACE ANALYSIS; GRAPHITE-FURNACE ATOMIC ABSORPTION SPECTROMETRY; CADMIUM; INDIUM; NICKEL;

D O I：

10.1007/BF01242097

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Microscale preconcentration techniques using 1 to 10 milligrams of samples and microliter volumes of aqueous solutions and organic solvents are described for the determination of cadmium at the sub-ppm level in indium and nickel by graphite-furnace atomic absorption spectrometry. Several simple apparatus are devised to overcome operational difficulties resulting from the miniaturization and ensure the precision and accuracy of analytical results. Cadmium in the metals is heterogeneously distributed.

引用

页码：253 / 259

页数：7