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Square‐Wave Stripping Voltammetry of Uranium(VI) at the Glassy Carbon Electrode. Application to Some Industrial Samples
Author(s) -
ElMaali Nagwa Abo,
ElHady Deia Abd
Publication year - 1999
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/(sici)1521-4109(199903)11:3<201::aid-elan201>3.0.co;2-n
Subject(s) - uranium , stripping (fiber) , square wave , glassy carbon , metal ions in aqueous solution , metal , carbon fibers , voltammetry , chemistry , chelation , ion , anodic stripping voltammetry , sulfonic acid , analytical chemistry (journal) , inorganic chemistry , electrode , nuclear chemistry , materials science , cyclic voltammetry , electrochemistry , chromatography , metallurgy , organic chemistry , physics , quantum mechanics , voltage , composite number , composite material
A new method for trace uranium, based on the adsorptive accumulation of the chelate compound formed between U(Vl) and [4‐(2‐hydroxyethyl)‐l‐piprazine ethane sulfonic acid] on glassy carbon electrode is described. The optimum conditions for the complex formation were: 0.02 M HClO 4 , pH 4.0, accumulation potential+0.1 V (vs. Ag/AgCl), frequency 15 Hz and SW amplitude 25 mV. Under these conditions, it was easy to determine the metal ion in a concentration range as low as 1×10 −9 M. The effect of possible interfering metal ions, e.g., Cu(II), Fe(III), Al(III), Mg(II), etc. has been tested. Application of the method for the determination of the metal ion in some industrial samples has been successfully done.