DETERMINATION OF GALLIUM IN PURE ALUMINUM BY ISOTOPE-DILUTION ANALYSIS WITH SOLVENT-EXTRACTION USING INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY

被引：34

作者：

MAKISHIMA, A ^{[1
]}

INAMOTO, I ^{[1
]}

CHIBA, K ^{[1
]}

机构：

[1] NIPPON STEEL CORP LTD,ANAL RES LAB,1618 IDA,KAWASAKI 211,JAPAN

来源：

APPLIED SPECTROSCOPY | 1990年 / 44卷 / 01期

关键词：

D O I：

10.1366/0003702904085840

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Isotope dilution analysis with inductively coupled plasma mass spectrometry (ICP-MS) was applied to the determination of gallium in pure aluminum. Furthermore, a solvent extraction procedure was combined with isotope dilution analysis as a preconcentration technique in order to determine ultra-trace levels of gallium with high precision. The accuracy and the precision of isotope dilution analysis using ICP-MS were compared with those of conventional standard addition analysis using ICP-MS. Isotope dilution analysis gave more accurate and precise results than did standard addition analysis. Isotope dilution analysis with solvent extraction made it possible to measure 0.029 μg/g gallium in 99.999% aluminum with analytical errors at less than 3%.

引用

页码：91 / 95

页数：5

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