Nitrite-selective ISE based on uranyl salophen derivatives

[摘要] 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 pNO(2)(-) 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 tridocecylmethylammonium chloride (TDMAC) at 10 mol% versus ionophore as an additive.

[发布日期] 1996-12-01

[关键词] anion selectivity;uranyl salophenes;nitrite ion-selective electrodes