application of a new macrocyclic -pvc electrode to potentiometric studies of fe(iii) ion
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abstract
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.
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Journal title:
journal of physical & theoretical chemistryISSN
volume 9
issue 3 2012
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