DETERMINATION OF YTTERBIUM IN SEAWATER BY GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY AFTER COPRECIPITATION AND SOLVENT-EXTRACTION

被引：10

作者：

FUJINO, O ^{[1
]}

NISHIDA, S ^{[1
]}

TOGAWA, H ^{[1
]}

HIRAKI, K ^{[1
]}

机构：

[1] KINKI UNIV,FAC SCI & TECHNOL,DEPT CHEM,HIGASHIOSAKA,OSAKA 577,JAPAN

来源：

ANALYTICAL SCIENCES | 1991年 / 7卷 / 06期

关键词：

YTTERBIUM; GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY; SEAWATER; COPRECIPITATION; SOLVENT EXTRACTION;

D O I：

10.2116/analsci.7.889

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Trace amounts of ytterbium in seawater were coprecipitated with iron(III) hydroxide, and the precipitate was dissolved in 2 ml of 8 mol/dm3 hydrochloric acid. Iron(III) ions were removed by extraction with 2,6-dimethyl-4-heptanone, and a 20-mu-l aliquot of the aqueous phase was directly injected into a graphite furnace atomizer. Ytterbium in seawater was found to be (0.62 - 1.35)x10-9 g/l.

引用

页码：889 / 892

页数：4