Engine oil acidity detection using solid state ion selective electrodes

Continuous monitoring using thiocyanate ion-selective electrodes

Multi-analyte biochip (MAB) based on all-solid-state ion-selective electrodes (ASSISE) for physiological research.

Lab-on-a-chip (LOC) applications in environmental, biomedical, agricultural, biological, and spaceflight research require an ion-selective electrode (ISE) that can withstand prolonged storage in complex biological media (1-4). An all-solid-state ion-selective-electrode (ASSISE) is especially attractive for the aforementioned applications. The electrode should have the following favorable charac...

Evaluation of a New Solid-State Reference Electrode Junction Material for Ion-Selective Electrodes

The performance and properties of a new low-resistance material, Refex, suitable for use in reference electrode junctions is described. The material is a solid polyvinyl acetate that contains a very large loading of KCl (1: 1 w/w KCl/PVA). Despite relatively large active surface areas in the designs studied (stand-alone reference and combination pH), leakage rates of KC! are remarkably low. pH ...

Multi-walled Carbon Nanotubes as Ion-to-Electron Transducer in All-Solid-State Potassium Ion-Selective Electrodes

Carbon nanostructured materials in general and carbon nanotubes in particular exhibit remarkable and unique properties that make them promising candidates for a wide range of applications. In the field of sensors, for example, carbon-based materials such as fullerene (C60) [1], three-dimensionally ordered macroporous (3DOM) carbon [2], and single-walled carbon nanotubes (SWCNTs) [3] have been u...

Applications of Ion Selective Electrodes

Enzyme sensor for organophosphorus insecticides organophosphorus hydrolase in a polymer membrane on a pH sensor is used to catalyse the hydrolysis of compounds with phoshate ester functionality. The detected [H+] change is proportional to the concentration of the phosphate ester insecticide. This is a good example of the use of an enzyme to give selectivity to a specific class of compounds. Unf...