A novel highly sensitive zeolite-based conductometric microsensor for ammonium determination

Abstract : Natural zeolite clinoptilolite was successfully applied in the sensing technology for electrochemical detection of ammonium. A novel ammonium-selective sensor was developed based on clinoptilolite, possessing intrinsic ammonium-sieving and ion exchange capacity. The sensor design allowed measurements in both differential mode and requiring no classical reference electrode. The sensor selectivity towards Na+, K+, Ca2+, Mg2+, and Al3+ was studied. The limit of detection and the dynamic range of the ammonium-selective conductometric microsensor, determined in the phosphate buffer solution, were 1.0 x 10(-8) M and 0-8 mM, respectively. The ammonium sensor presented high operational and storage stability.
Document type :
Journal articles
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-00879584
Contributor : Agnès Bussy <>
Submitted on : Monday, November 4, 2013 - 12:32:08 PM
Last modification on : Thursday, February 7, 2019 - 5:10:58 PM

Identifiers

Citation

O. Y. Saiapina, S. V. Dzyadevych, Alain Walcarius, Nicole Jaffrezic-Renault. A novel highly sensitive zeolite-based conductometric microsensor for ammonium determination. Analytical Letters, Taylor & Francis, 2012, 45 (11), pp.1467-1484. 〈10.1080/00032719.2012.675487〉. 〈hal-00879584〉

Share

Metrics

Record views

150