Cathodic stripping determination of iron at a platinum electrode modified by adsorption of adenosine-5'-monophosphate
作者： James A. Cox , Marcin Majda
DOI: 10.1016/S0003-2670(01)93602-5
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摘要: Abstract Irreversible adsorption of adenosine-5'-monophosphate onto platinum yields an electrode surface which is readily plated by formation a non-labile complex with iron(III) present initially in solution or formed oxidation iron(II). A negative potential scan subsequent to 60-s deposition step produces cathodic stripping peak, the height proportional sum Pe(III) and Fe(II) concentrations solution. Oxalate can be used mask response Fe(III). The method shown applicable determinations Fe(III) concentration range lO -8 –lO -6 mol l -1 .
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