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1 Polish Journal of Chemistry

1 2000

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Iodide Ion-Selective PVC Membrane Electrode Based on a Recently Synthesized Salen-Mn(II) Complex

Shamsipur M., Sadeghi S., Naeimi H., Sharghi H.

Polish Journal of Chemistry

2000

Vol. 74, nr 2

231-238

A new PVC mebrane electrode for iodide ions based on a recently synthesized salen-Mn9II) complex as membrane carrier was prepared. The electrode exhibits a Nernstian slope of 59.0=+0.4 mV per decade for 1- over a wide concentration range (1.0 x 10-1 --.4x 10-5M). It has a relatively fast response time of about 20 s and can be used for at least three months without any divergence in potential. The proposed sensor shows a fairly good discriminating ability towards 1- ion in comparison to other common anions. The electrode can be used in the pH range 3.5-8.5. It was used as an indicator electrode in potentiometric titration of iodide ion.