Nitrite-selective ISE based on uranyl salophen derivatives


Wroblewski, Wojciech and Brzozka, Zbigniew and Rudkevich, Dmitry M. and Reinhoudt, David N. (1996) Nitrite-selective ISE based on uranyl salophen derivatives. Sensors and Actuators B: Chemical, 37 (3). pp. 151-155. ISSN 0925-4005

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Abstract:Anion selectivities of membranes based on uranyl salophen derivatives with substituents at the 4-position are presented. Derivative 2 (with 4-nitro substituent) has been applied to design a nitrite-selective ion-selective electrode (ISE) that shows linear response in the range 1¿3 of pNO2¿ with a slope of 56.2 mV decade¿1. The highest selectivity over other anions and optimum performance of the electrodes are obtained for membranes containing tridodecylmethylammonium chloride (TDMAC) at 10 mol% versus ionophore as an additive.
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Copyright:© 1996 Elsevier Science
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