Potentiometric analytical microsystem based on the integration of a gas-diffusion step for on-line ammonium determination in water recycling processes in manned space missions

Antonio Calvo-López, Oriol Ymbern, Mar Puyol, Joan Manel Casalta, Julián Alonso-Chamarro

Producció científica: Contribució a una revistaArticleRecercaAvaluat per experts

24 Cites (Scopus)

Resum

© 2014 Elsevier B.V. The design, construction and evaluation of a versatile cyclic olefin copolymer (COC)-based continuous flow potentiometric microanalyzer to monitor the presence of ammonium ion in recycling water processes for future manned space missions is presented. The microsystem integrates microfluidics, a gas-diffusion module and a detection system in a single substrate. The gas-diffusion module was integrated by a hydrophobic polyvinylidene fluoride (PVDF) membrane. The potentiometric detection system is based on an all-solid state ammonium selective electrode and a screen-printed Ag/AgCl reference electrode. The analytical features provided by the analytical microsystem after the optimization process were a linear range from 0.15 to 500mgL-1 and a detection limit of 0.07±0.01mgL-1. Nevertheless, the operational features can be easily adapted to other applications through the modification of the hydrodynamic variables of the microfluidic platform.
Idioma originalEnglish
Pàgines (de-a)26-32
RevistaAnalytica Chimica Acta
Volum874
DOIs
Estat de la publicacióPublicada - 1 de gen. 2015

Fingerprint

Navegar pels temes de recerca de 'Potentiometric analytical microsystem based on the integration of a gas-diffusion step for on-line ammonium determination in water recycling processes in manned space missions'. Junts formen un fingerprint únic.

Com citar-ho