Carbon nanotubes have enjoyed unflagging popularity in recent years. They are successfully used in many fields of science, including potentiometry for the construction of ion selective electrodes with solid contact. A new type of SC-ISEs sensitive to nitrate(V) ions using multiwalled carbon nanotubes-ionic liquid nanocomposite was prepared. The effect of the kind of carbon nanotubes on the parameters of SC-ISEs was investigated. The study compares, among others, detection limits, sensitivity and linearity ranges of characteristic curves, and stability of the potential measured for the tested electrodes. Electrochemical impedance spectroscopy and chronopotentiometric techniques were also used as research methods. It was found that the type of carbon nanotubes included in the nanocomposite influences both the metrological and electrical parameters of the obtained solid contact nitrate ion-selective electrode.

近年来，碳纳米管一直广受欢迎。它们已成功用于许多科学领域，包括用于构建具有固体接触的离子选择性电极的电位计。使用多壁碳纳米管-离子液体纳米复合材料制备了一种对硝酸根（V）离子敏感的新型SC-ISEs。研究了碳纳米管的种类对SC-ISEs参数的影响。该研究比较了特性曲线的检测限、灵敏度和线性范围，以及测试电极测量的电位稳定性等。电化学阻抗谱和计时电位技术也被用作研究方法。