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Nafion® as advanced immobilisation substrate for the voltammetric analysis of electroactive microparticles: the case of some artistic colouring agents

Moretto, Ligia Maria ; Montagner, Francesca ; Ganzerla, Renzo ; Ugo, Paolo

Analytical and bioanalytical chemistry, April 2013, Vol.405(11), pp.3603-10 [Peer Reviewed Journal]

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  • Title:
    Nafion® as advanced immobilisation substrate for the voltammetric analysis of electroactive microparticles: the case of some artistic colouring agents
  • Author: Moretto, Ligia Maria ; Montagner, Francesca ; Ganzerla, Renzo ; Ugo, Paolo
  • Is Part Of: Analytical and bioanalytical chemistry, April 2013, Vol.405(11), pp.3603-10
  • Description: Voltammetry of microparticles is applied to characterise and to identify solid analytes of interest in the field of cultural heritage. Nafion® is used for the immobilisation of solid microparticles onto the surface of a glassy carbon electrode by exploiting the deposition onto the electrode surface of a micro-volume of a suspension of the microsample in polymeric solution. Cyclic voltammetry and square wave voltammetry are applied to characterise and to identify the microparticles immobilised in the Nafion® coating. The analyte studied in this work is Prussian Blue as a typical inorganic pigment, with a relatively simple electrochemical behaviour. The proposed method is applied to a sample of Venetian marmorino plaster. The performance of Nafion® for this analysis is compared with that of the polymer Paraloid B72.
  • Language: English
  • Identifier: E-ISSN: 1618-2650 ; PMID: 23440394 Version:1 ; DOI: 10.1007/s00216-013-6796-2
  • Source: MEDLINE/PubMed (U.S. National Library of Medicine)

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