AGH-UST University of Science and Technology , Faculty of Material Science and Ceramics, Mickiewicza 30, PL-30059 Cracow, Poland.
Anal Chem. 2013 Nov 5;85(21):10255-61. doi: 10.1021/ac402885y. Epub 2013 Oct 18.
For the first time, a single-piece, all-solid-state ion-selective electrode was fabricated with carbon black supporting platinum nanoparticles (PtNPs-CB) and a polymeric membrane. The PtNPs-CB, as an intermediate layer, was drop-casted directly on the solid substrate, and then an ionophore-doped solvent polymeric membrane was added in order to form a sensor. The performance of the newly developed electrodes was evaluated on the basis of potassium and nitrate ions. The stability of the electrical potential for the electrodes was examined by performing current-reversal chronopotentiometry, and the influence of the interfacial water film was assessed by the potentiometric aqueous-layer test. Fabricated potassium- and nitrate-selective electrodes displayed a Nernstian slope and several outstanding properties such as high long-term potential stability, potential repeatability, and reproducibility.
首次采用碳黑负载铂纳米粒子（PtNPs-CB）和聚合物膜制备了一体式全固态离子选择性电极。PtNPs-CB 作为中间层，直接滴铸在固体基底上，然后添加离子载体掺杂的溶剂聚合物膜以形成传感器。根据钾离子和硝酸根离子评估了新开发电极的性能。通过进行电流反转计时电位法检查电极的电势能稳定性，并通过电位水层测试评估界面水膜的影响。制备的钾离子和硝酸根选择性电极呈现出能斯特斜率和一些突出的特性，如高长期电势稳定性、电势重复性和再现性。
