SIMULTANEOUS DETERMINATION OF LANTHANUM, STRONTIUM AND COPPER IN SUPERCONDUCTOR MATERIALS BY ION CHROMATOGRAPHY

被引：13

作者：

GAUTIER, EA

GETTAR, RT

SERVANT, RE

机构：

[1] Departamento Química Analítica, Div. Espectrometría de Masas, Comisión Nacional de Energía Atómica, 1429 Buenos Aires

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 283卷 / 01期

关键词：

ION CHROMATOGRAPHY; COPPER; LANTHANUM; STRONTIUM; SUPERCONDUCTORS;

D O I：

10.1016/0003-2670(93)85243-D

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A precise and rapid procedure for the determination of metallic macro-components in ceramic superconductor samples of the La-Sr-Cu-O type is described. Lanthanum, strontium and copper are determined by ion chromatography using a complexing mobile phase (EDTA solution) and UV detection. Calibration graphs were linear in the concentration ranges 0.4-100, 0.1-100 and 0.05-100 mug ml-1, respectively, and practical determination limits of 0.1, 0.04 and 0.025 mug ml-1 of La(III), Sr(II), Cu(II) ions, respectively, were achieved.

引用

页码：350 / 353

页数：4

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