An Amperometric Biosensor Based on Alanine Dehydrogenase for the Determination of Low Level of Ammonium Ion in Water

An amperometric electrochemical biosensor has been developed for ammonium (NH4+) ion detection by immobilising alanine dehydrogenase (AlaDH) enzyme in a photocurable methacrylic membrane made up of poly(2-hydroxyethyl methacrylate) (pHEMA) on a screen-printed carbon paste electrode (SPE). The curren...

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Bibliographic Details
Main Authors: Tan Ling Ling, Musa Ahmad, Lee Yook Heng
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Journal of Sensors
Online Access:http://dx.doi.org/10.1155/2011/980709