Transcription of An improved approach for fabricating Ag/AgCl …
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An improved approach for fabricating Ag/AgCl …
Electrochimica Acta 71 (2012) 252 257 Contents lists available at SciVerse ScienceDirectElectrochimica Actaj ourna l ho me pag e: improved approach for fabricating Ag/AgCl reference electrodesPaul J. Brewera, , Rebecca J. Leeseb, Richard BrownaaNational Physical Laboratory, Analytical Science Division, Hampton Road, Teddington, Middlesex, TW11 0LW, UKbUniversity of Southampton, School of Chemistry, University Road, Southampton, Hampshire, S017 1BJ, UKa r t i c l e i n f oArticle history:Received 15 December 2011 Received in revised form 28 March 2012 Accepted 31 March 2012 Available online 6 April 2012 Keywords:pHHarned cellAg/AgCl electrodePrimary methodsRepeatabilitya b s t r a c tWe report an improved approach for fabricating Ag/AgCl reference electrodes for use in Harned Cellmeasurements of pH. Standard fabrication procedures involve converting a proportion of Ag to is usually driven by applying a fixed current, instead the novel approach presented here uses afixed potential.
254 P.J. Brewer et al. / Electrochimica Acta 71 (2012) 252–257 Fig. 1. EDX images showing the elemental analysis of the cross section of a Ag/AgCl electrode after anodisation at a constant current of 1mA.
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