ELECTROCHEMICAL DETERMINATION OF IRON IN YBA2(CU1-XFEX)3O7 SUPERCONDUCTING COMPOUNDS

Authors
BOUTAKHRIT K ELKASMI A KAUFFMANN JM DELTOUR R MEHBOD M MARVIN CA
Citation
K. Boutakhrit et al., ELECTROCHEMICAL DETERMINATION OF IRON IN YBA2(CU1-XFEX)3O7 SUPERCONDUCTING COMPOUNDS, Electroanalysis, 5(9-10), 1993, pp. 877-882
Citations number
22
Categorie Soggetti
Chemistry Analytical
Journal title
Electroanalysis → ACNP
ISSN journal
10400397
Volume
5
Issue
9-10
Year of publication
1993
Pages
877 - 882
Database
ISI
SICI code
1040-0397(1993)5:9-10<877:EDOIIY>2.0.ZU;2-E
Abstract
The electrochemical determination of iron in doped YBaCuO superconduct ing compounds has been investigated by differential pulse polarography (SMDE) and by differential pulse voltammetry using a glassy carbon el ectrode. A well-defined peak for iron was observed at -0.15 V (vs. Ag- AgCl) reference electrode in sodium citrate/EDTANa2H2 pH 6. The electr ochemical results have been validated by spectroscopic procedures, inc luding atomic absorption and energy dispersion X-ray spectroscopy. The differential pulse polarography using the standard addition method fo r peak validation has been found to be most appropriate.