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dc.contributor.authorBrett, Christopher M. A.-
dc.contributor.authorFungaro, Denise A.-
dc.contributor.authorMorgado, José M.-
dc.contributor.authorGil, M. Helena-
dc.identifier.citationJournal of Electroanalytical Chemistry. 468:1 (1999) 26-33en_US
dc.description.abstractVarious polymer coatings have been investigated for the protection of mercury thin-film electrodes in the square wave anodic stripping voltammetry of environmental samples using batch injection analysis, with injection of untreated samples of volume 50 [mu]l directly over the sensing electrode. Polymer coatings studied include those with controlled porosity, and cation-exchange polymers based on sulphonated polymers. Of the polymers tested, films of ca. 1 [mu]m thickness made from Nafion® mixed with 5% poly(vinyl sulphonic acid) were found to give the best results in tests with the model surfactants Triton-X-100 detergent, sodium dodecyl sulphate and protein standard. The validity of the approach is demonstrated by application to real samples.en_US
dc.subjectAnodic stripping voltammetryen_US
dc.subjectPolymer-coated electrodesen_US
dc.subjectBatch injection analysisen_US
dc.subjectEnvironmental electroanalysisen_US
dc.titleNovel polymer-modified electrodes for batch injection sensors and application to environmental analysisen_US
item.fulltextCom Texto completo-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
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