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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 29, Number 2
BKCSDE 29(2)
February 20, 2008

Title	A New Selective Membrane Electrode for Oxalate Based on N,N'-Bis(salicylidene)-2,2-dimethylpropane-1,3-diamine Ni(II)
Author	M. Mazloum Ardakani*, F. Iranpoor, M. A. Karimi, M. Salavati-Niasari
Keywords	Ion-selective electrode, Oxalate, Potentiometry, Membrane
Abstract	A new solvent polymeric membrane electrode, based on N,N'-bis(salicylidene)-2,2-dimethylpropane-1,3- diamine Ni(II) as the ionophore, was designed. The oxalate-selective electrode has the dynamic range between 1.0 × 10^?6 M and 1.0 × 10^?1 M with a Nernstian slope of ?28.7 ± 1.0 mV per decade. The detection limit was 6.3 × 10^?7 M. The proposed electrode revealed good selectivities for oxalate over a variety of other anions and could be used in a pH range of 2.0-7.8. The electrode can be used for at least two months without any considerable divergence in potential. The designed electrode was applied as an indicator electrode in the potentiometric determination of oxalate in real samples.
Page	398 - 404
Full Text	PDF

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