A Stable Ultra Low Flow Reference Electrode Using a Nanochannel Glass Array Junction

Le résumé fourni par la source

This paper describes the development of a novel pressure-driven nanofluidic- flowing liquid junction (NFLJ) reference electrode with an invariant liquid junction potential, for use in potentiometric sensors. These NFLJ reference electrodes have been shown to have a stable and reproducible potential with electrolyte flow under 5 ml per year. Use of the NFLJ reference electrode will result in sensors with outstanding precision that are maintenance free for periods of one year or more. This research is based on an innovative combination of nanochannel glass (NCG) and the nanofluidic liquid junction structure. The typical NCG array used for NFLJ reference electrodes has fewer than 200 channels with IDs smaller than 500 nm. Sensors using the NFLJ reference electrode demonstrate better potential stability, faster response time, and longer operational life than conventional commercial gel filled reference electrodes and are competitive with laboratory quartz fiber electrodes.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.