Abstract

ARADA-PEREZ, María de los A; PACHECO-RAMIREZ, Yoanys  and  LEON-DUHARTE, Leandro. Recognition to the ion Ag⁺ with a selective electrode "all solid stated". Rev Cub Quim [online]. 2016, vol.28, n.2, pp. 660-674. ISSN 2224-5421.

Has been prepared a sensitive electrode to the silver cation for that which was used 5-(4-dimethylaminobenzylidene)rhodanine dissolved in dibutylphthalate (DBP) and immobilized in polylvinyl chloride (PVC) on a support of conductive resin. The results show that the electrode presents a lineal answer in the range from 10^-2 to 10^-6 mol/L with a slope of 69,90 ± 1,73 mV.dec^-1 respectively in the range of time that was analyzed. The time of answer of the electrode was determined (25 s) and the selectivity coefficient was calculated for diverse ions. This study has shown for the studied ions (Cu²⁺, Pb²⁺ and Cd²⁺) that the value of K^Pot_AB is in the order of 10^-3 mol/L, not being strong interferents for the values obtained

Keywords : sensor; Potentiometric sensors; Ion-selective electrode; 5-(4-dimethylamino benzylidine)rhodanine.

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