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Electroanalytical study of Prussian Blue modified glassy carbon paste electrodes

Ricci, F; Gonçalves, C; Amine, A; Gorton, Lo LU ; Palleschi, G and Moscone, D (2003) In Electroanalysis 15(14). p.1204-1211
Abstract
Two types of glassy carbon (GC) powder (i.e., Sigradur K and Sigradur G) have been mixed with mineral oil to obtain glassy carbon paste electrodes (GCPE's). The electrochemical behavior of such electrodes at different percentages of glassy carbon has been evaluated with respect to the electrochemistry of ferricyanide as revealed with cyclic voltammetry and the best paste composition was chosen. GC was then modified with Prussian Blue (PB), mixed at different percentages with unmodified GC and with a fixed amount of mineral oil in order to obtain PB modified glassy carbon paste electrodes (PB-GCPE's). PB-GCPE's with different percentages of GC modified with PB (PB-GC) were compared and the dependence on the amount of PB on their... (More)
Two types of glassy carbon (GC) powder (i.e., Sigradur K and Sigradur G) have been mixed with mineral oil to obtain glassy carbon paste electrodes (GCPE's). The electrochemical behavior of such electrodes at different percentages of glassy carbon has been evaluated with respect to the electrochemistry of ferricyanide as revealed with cyclic voltammetry and the best paste composition was chosen. GC was then modified with Prussian Blue (PB), mixed at different percentages with unmodified GC and with a fixed amount of mineral oil in order to obtain PB modified glassy carbon paste electrodes (PB-GCPE's). PB-GCPE's with different percentages of GC modified with PB (PB-GC) were compared and the dependence on the amount of PB on their performances was evaluated by studying the parameters of cyclic voltammetry (i.e., current peak, Ep, anodic and cathodic current ratio, charge density) and the amperometric response to H2O2. Data interpretation based on the GC surface area is presented. GCPE's with a selected amount of PB-GC were then tested as H2O2 probes and all the analytical parameters together with the dependence on pH were evaluated. Some preliminary experiments with these electrodes assembled as glucose, lysine and lactate biosensors are also reported. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Electroanalysis
volume
15
issue
14
pages
1204 - 1211
publisher
John Wiley & Sons
external identifiers
  • wos:000185323500009
  • scopus:0041692781
ISSN
1040-0397
DOI
10.1002/elan.200390148
language
English
LU publication?
yes
id
44fa96c3-49ee-4962-b233-06bf1f3b5180 (old id 128964)
date added to LUP
2007-06-27 14:08:43
date last changed
2018-05-29 11:23:28
@article{44fa96c3-49ee-4962-b233-06bf1f3b5180,
  abstract     = {Two types of glassy carbon (GC) powder (i.e., Sigradur K and Sigradur G) have been mixed with mineral oil to obtain glassy carbon paste electrodes (GCPE's). The electrochemical behavior of such electrodes at different percentages of glassy carbon has been evaluated with respect to the electrochemistry of ferricyanide as revealed with cyclic voltammetry and the best paste composition was chosen. GC was then modified with Prussian Blue (PB), mixed at different percentages with unmodified GC and with a fixed amount of mineral oil in order to obtain PB modified glassy carbon paste electrodes (PB-GCPE's). PB-GCPE's with different percentages of GC modified with PB (PB-GC) were compared and the dependence on the amount of PB on their performances was evaluated by studying the parameters of cyclic voltammetry (i.e., current peak, Ep, anodic and cathodic current ratio, charge density) and the amperometric response to H2O2. Data interpretation based on the GC surface area is presented. GCPE's with a selected amount of PB-GC were then tested as H2O2 probes and all the analytical parameters together with the dependence on pH were evaluated. Some preliminary experiments with these electrodes assembled as glucose, lysine and lactate biosensors are also reported.},
  author       = {Ricci, F and Gonçalves, C and Amine, A and Gorton, Lo and Palleschi, G and Moscone, D},
  issn         = {1040-0397},
  language     = {eng},
  number       = {14},
  pages        = {1204--1211},
  publisher    = {John Wiley & Sons},
  series       = {Electroanalysis},
  title        = {Electroanalytical study of Prussian Blue modified glassy carbon paste electrodes},
  url          = {http://dx.doi.org/10.1002/elan.200390148},
  volume       = {15},
  year         = {2003},
}