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Carbon Black‐Modified Screen‐Printed Electrodes as Electroanalytical Tools
Author(s) -
Arduini Fabiana,
Di Nardo Fabio,
Amine Aziz,
Micheli Laura,
Palleschi Giuseppe,
Moscone Danila
Publication year - 2012
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100561
Subject(s) - ferricyanide , amperometry , electrochemistry , electrode , cyclic voltammetry , dielectric spectroscopy , carbon black , materials science , glassy carbon , analytical chemistry (journal) , nuclear chemistry , chemistry , inorganic chemistry , chromatography , composite material , natural rubber
In this paper screen‐printed electrodes (SPEs) bulk modified with carbon black (CB) or with CB dispersion in DMF:water were developed and characterized. We have demonstrated by cyclic voltammetry, SEM and electrochemical impedance spectroscopy that an increase of CB amount on the working electrode surface increases the electrochemical performances of CB‐SPE. The CB‐SPE was tested with ferricyanide, epinephrine, benzoquinone and H 2 O 2 demonstrating in any case an enhancement of electrochemical activity. For H 2 O 2 amperometric detection, a sensitivity of 241.4±5.7 mA M −1 cm −2 and 1.46±0.06 mA M −1 cm −2 was obtained, respectively, for CB‐SPE and bare SPE.