Potentiometric Sensor Platform Based on a Carbon Black Modified Electrodes

作者：Paczosa Bator Beata^*; Cabaj Leszek; Ras Magdalena; Bas Boguslaw; Piech Robert

来源：International Journal of Electrochemical Science, 2014, 9(6): 2816-2823.

DOI：10.1016/s1452-3981(23)07970-1

• Potentiometric sensor platform
• Carbon black
• High signal stability
• Multi-electrode system

Potentiometric sensor platform based on a carbon black modified ion-selective electrodes with a very stable potential signal is presented. The ion-selective electrodes were obtained basing on the addition of the Printex XE2-B carbon black as an intermediate layer between the ionophore-doped solvent polymeric membrane and the electrical conductor. The analytical parameters of new sensor platform were evaluated by the determining of sodium, potassium, chlorate and nitrate ions. The electrodes presented Nernstian slopes, a very good reproducibility of the standard potential values and a small potential drift. The proposed sensor platform was successfully applied in sodium, potassium, chlorate and nitrate ion determination in water samples and validated by comparison with different analytical methods.

• 出版日期2014-6