Zhybak, Mykhailo T., Vagin, Mikhail Yu, Beni, Valerio, Liu, Xianjie, Dempsey, Eithne, Turner, Anthony P.F. and Korpan, Yaroslav I. (2016) Direct detection of ammonium ion by means of oxygen electrocatalysis at a copper-polyaniline composite on a screen-printed electrode. Microchimica Acta, 183. pp. 1981-1987. ISSN 1436-5073