Application of a New Macrocyclic -PVC Electrode to Potentiometric Studies of Fe(III) Ion
محورهای موضوعی : Journal of Physical & Theoretical Chemistry
R. Aminameli
1
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M. H. Fekri
2
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H. Shafie
3
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M. Darvishpour
4
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H. Khanmohammadi
5
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کلید واژه: Ion selective electrode, PVC membrane, Fe(III) determination, Macrocyclic ionophore,
چکیده مقاله :
A PVC membrane Fe(III) ion selective electrode has been constructed using a new macrocyclic asmembrane carrier.The electrode exhibits a good potentiometric response for Fe(III) over a wideconcentration range 1.0×10-4 to 1.0×10-1M with a slope 19.4±0.5 mV/decade a and a working pHrange of 6.5-9.0. It has a fast response time ≤30s.The best performance was observed with themembrance having the 30.5% PVC,3.0% ligand, 61.0% acetophenone and 5.5% oleic acidcomposition.
