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Electrochemical determination of iron in YBa 2 (Cu 1–x Fe x ) 3 O 7 superconducting compounds
Author(s) -
Boutakhrit Khalid,
Kasmi Asma El,
Kauffmann JeanMichel,
Deltour Robert,
Mehbod Mohamed,
Marvin Craig A.
Publication year - 1993
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140050924
Subject(s) - polarography , electrochemistry , differential pulse voltammetry , analytical chemistry (journal) , materials science , atomic absorption spectroscopy , electrode , pulse (music) , cyclic voltammetry , chemistry , inorganic chemistry , voltage , chromatography , physics , quantum mechanics
The electrochemical determination of iron in doped YBaCuO superconducting compounds has been investigated by differential pulse polarography (SMDE) and by differential pulse voltammetry using a glassy carbon electrode. A well‐defined peak for iron was observed at –0.15 V (vs. Ag‐AgCl) reference electrode in sodium citrate/EDTANa 2 H 2 pH 6. The electrochemical results have been validated by spectroscopic procedures, including atomic absorption and energy dispersion X‐ray spectroscopy. The differential pulse polarography using the standard addition method for peak validation has been found to be most appropriate.