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Determination of trace europium by adsorptive cathodic stripping voltammetry after complexation with cupferron
Author(s) -
Abollino Ornella,
Aceto Maurizio,
Mentasti Edoardo,
Sarzanini Corrado,
van den Berg Constant M. G.
Publication year - 1997
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.1140090603
Subject(s) - cathodic stripping voltammetry , chemistry , stripping (fiber) , detection limit , ytterbium , europium , analyte , voltammetry , analytical chemistry (journal) , inorganic chemistry , adsorptive stripping voltammetry , chromatography , electrochemistry , materials science , electrode , ion , optoelectronics , organic chemistry , composite material , doping
This article describes the determination of Eu by adsorptive cathodic stripping voltammetry after complexation with N ‐nitroso‐ N ‐phenylhydroxylamine (cupferron). The accumulation of the complex at the HMDE was performed at 0.0 V and the subsequent potential scan was made in the square wave mode. The analyte signal occurred at −0.88 V. The detection limit is 0.06 nmol dm −3 . The effect of instrumental and chemical parameters on the peak height and potential was investigated. The same technique can be used for the determination of ytterbium and of the other rare earth elements (REEs) after separation.