Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3365
Title: Multicomponent analysis of sodium cuprate, NaCuO2-x, having a high Cu(III) content
Authors: DE BACKER, An 
YPERMAN, Jan 
Ogorevc, B
Tavcar, G.
FRANCO, Dirk 
MULLENS, Jules 
VAN POUCKE, Lucien 
Issue Date: 1996
Publisher: ELSEVIER SCIENCE BV
Source: ANALYTICA CHIMICA ACTA, 334(1-2). p. 103-111
Abstract: Sodium cuprate with a high Cu(III) content was synthesized and characterized with emphasis on the determination of Cu(III). Results of multicomponent analysis, carried out in two independent laboratories employing several different methods, are compared and discussed. For Cu(III) determination, improved or newly developed iodometric and voltammetric methods were used. A good agreement on the high Cu(III) content (97-98% of total copper) was found. Virtually no peroxidic oxygen was found employing a specific photometric procedure. Other components, sodium and total copper, were determined by means of usual methods: inductively coupled plasma atomic emission spectroscopy (ICP-AES), atomic absorption spectroscopy (AAS), flame emission spectroscopy (FES) and ion selective electrode (ISE)/potentiometry. This preliminary interlaboratory characterization study showed that sodium cuprate, synthesized by the applied method, can be considered as a potential Cu(III) standard reference material.
Notes: LIMBURGS UNIV CTR,LAB INORGAN & PHYS CHEM,B-3590 DIEPENBEEK,BELGIUM. NATL INST CHEM,ANALYT CHEM LAB,LJUBLJANA 1001,SLOVENIA.
Keywords: sodium cuprate; copper; multicomponent analysis; voltammetry; atomic emission spectrometry
Document URI: http://hdl.handle.net/1942/3365
DOI: 10.1016/S0003-2670(96)00282-6
ISI #: A1996VV19400013
Type: Journal Contribution
Appears in Collections:Research publications

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