Amperometric Detection of H2O2 Using Gold Electrodes Modified with Starburst PAMAM Dendrimers and Prussian Blue

Amperometric Detection of H2O2 Using Gold Electrodes Modified with Starburst PAMAM Dendrimers and Prussian Blue

Gold‐bead electrodes were modified by covalent bonding or physical adsorption of several Starburst PAMAM dendrimers (generations 2.0, 3.0 and 4.0) followed by absorption of Prussian Blue (PB). The covalent dendrimer‐PB‐modified electrodes can be used as amperometric sensors of H2O2 in aqueous soluti...

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2006-11, Vol.18 (21), p.2092-2098
Hauptverfasser: Bustos Bustos, Erika, Chapman, Thomas W., Rodríguez-Valadez, F., Godínez, Luis A.
Format: Artikel
Sprache:eng
Schlagworte:
Chemically modified electrodes
Electrochemical sensors
Hydrogen peroxide
PAMAM dendrimers
Prussian Blue
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Zusammenfassung:Gold‐bead electrodes were modified by covalent bonding or physical adsorption of several Starburst PAMAM dendrimers (generations 2.0, 3.0 and 4.0) followed by absorption of Prussian Blue (PB). The covalent dendrimer‐PB‐modified electrodes can be used as amperometric sensors of H2O2 in aqueous solution. They offer enhanced sensitivity with correspondingly lower detection and quantification limits compared to similar amperometric detectors.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.200603619