Nickel(II), manganese(III), and magnesium(II) porphyrazines are synthesized and investigated as active electrode components of polyvinyl chloride plasticized membranes for ion selective electrodes (ISE). The potentiometric response of membranes based on metalloporphyrazines doped with 1,3 dihexadecylimida zolium chloride (ionic additive) relative to benzylpenicillin and iodide anions is studied. It is found that the introduction of the ionic additive significantly improves the electrochemical characteristics of the ISE: the slope of the electrode function in benzylpenicillinate solutions is (58 ± 7) mV/dec and c min = 7 × 10 -5 M, and in iodide solutions, (55 ± 2) mV/dec and c min = 6 × 10 -6 M. It is shown that the ISE based on manganese(III) por phyrazine with an ionic additive can be used to determine iodide in Iodinol preparation.
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