Anion-selective electrodes based on solidified 1,3-dihexadecylimidazolium ionic liquids with halide and pseudohalide anions

作者：Rzhevskaia A V; Shvedene N V; Pletnev I V^*

来源：Journal of Electroanalytical Chemistry, 2016, 783: 274-279.

DOI：10.1016/j.jelechem.2016.11.009

• Ionic liquid
• Solid-state ion-selective electrode
• Determination of anions

In this study screen-printed solid-state electrodes using low-melting ionic liquids with cation of 1,3-dihexadecylimidazolium and such anions as chloride, iodide, and thiocyanate were developed. Potentiometric response and electrochemical characteristics of ion-selective electrodes in KCl, KI, and KSCN solutions were studied. All sensors exhibited sensitivity toward the corresponding anions, the slopes close to Nernstian ones, low detectionlimits (3.0-10(-6) M for SCN-), and high selectivity in the presence of the extraneous anions. Operation time of the sensors was not less than one year. The applicability of the developed electrodes for the potentiometric determination of iodide in pharmaceuticals and thiocyanate in human saliva was demonstrated.

• 出版日期2016-12-15