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Investigation of the effect of different glassy carbon materials on the performance of Prussian blue based sensors for hydrogen peroxide

Ricci, F; Palleschi, G; Yigzaw, Yirgalem LU ; Gorton, Lo LU ; Ruzgas, Tautgirdas LU and Karyakin, A (2003) In Electroanalysis 15(3). p.175-182
Abstract
Three different kinds of glassy carbon (GC-R, GC-K, GC-G) were equally pretreated, further modified with electrochemically deposited Prussian Blue and used as sensors for hydrogen peroxide at an applied potential of -50 mV (vs. Ag|AgCl). Their performance was evaluated with respect to the following parameters: the coverage and electrochemistry of the electrodeposited Prussian Blue, the sensitivity and the lower limit of detection for hydrogen peroxide, and the operational stability of the sensors. GC-R showed the best behavior concerning the surface coverage and the operational stability of the electrodeposited Prussian Blue. For this electrode the sensitivity for hydrogen peroxide (10 M) was 0.25 A/M cm2 and the detection limit was 0.1 M.... (More)
Three different kinds of glassy carbon (GC-R, GC-K, GC-G) were equally pretreated, further modified with electrochemically deposited Prussian Blue and used as sensors for hydrogen peroxide at an applied potential of -50 mV (vs. Ag|AgCl). Their performance was evaluated with respect to the following parameters: the coverage and electrochemistry of the electrodeposited Prussian Blue, the sensitivity and the lower limit of detection for hydrogen peroxide, and the operational stability of the sensors. GC-R showed the best behavior concerning the surface coverage and the operational stability of the electrodeposited Prussian Blue. For this electrode the sensitivity for hydrogen peroxide (10 M) was 0.25 A/M cm2 and the detection limit was 0.1 M. Scanning electron microscopy was used to study the surfaces of the three electrodes before and after the electrodeposition of Prussian Blue and to search for the reason for the three different behaviors between the different glassy carbon materials. The Prussian Blue modified GC-R was also used for the construction of a glucose biosensor based on immobilizing glucose oxidase in Nafion membranes on top of electrodeposited Prussian Blue layer. The operational stability of the glucose biosensors was studied in the flow injection mode at an applied potential of -50 mV (vs. Ag|AgCl) and alternatively injecting standard solutions of hydrogen peroxide (10 M) and glucose (1 mM) for 3 h. For the GC-R based biosensor a 2.8% decrease of the initial glucose response was observed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Electroanalysis
volume
15
issue
3
pages
175 - 182
publisher
John Wiley & Sons
external identifiers
  • wos:000181751600003
  • scopus:0037307685
ISSN
1040-0397
DOI
10.1002/elan.200390021
language
English
LU publication?
yes
id
549242f6-980c-4f9a-8d91-007cb2f49e0a (old id 128972)
date added to LUP
2007-06-27 14:11:07
date last changed
2018-05-29 09:58:21
@article{549242f6-980c-4f9a-8d91-007cb2f49e0a,
  abstract     = {Three different kinds of glassy carbon (GC-R, GC-K, GC-G) were equally pretreated, further modified with electrochemically deposited Prussian Blue and used as sensors for hydrogen peroxide at an applied potential of -50 mV (vs. Ag|AgCl). Their performance was evaluated with respect to the following parameters: the coverage and electrochemistry of the electrodeposited Prussian Blue, the sensitivity and the lower limit of detection for hydrogen peroxide, and the operational stability of the sensors. GC-R showed the best behavior concerning the surface coverage and the operational stability of the electrodeposited Prussian Blue. For this electrode the sensitivity for hydrogen peroxide (10 M) was 0.25 A/M cm2 and the detection limit was 0.1 M. Scanning electron microscopy was used to study the surfaces of the three electrodes before and after the electrodeposition of Prussian Blue and to search for the reason for the three different behaviors between the different glassy carbon materials. The Prussian Blue modified GC-R was also used for the construction of a glucose biosensor based on immobilizing glucose oxidase in Nafion membranes on top of electrodeposited Prussian Blue layer. The operational stability of the glucose biosensors was studied in the flow injection mode at an applied potential of -50 mV (vs. Ag|AgCl) and alternatively injecting standard solutions of hydrogen peroxide (10 M) and glucose (1 mM) for 3 h. For the GC-R based biosensor a 2.8% decrease of the initial glucose response was observed.},
  author       = {Ricci, F and Palleschi, G and Yigzaw, Yirgalem and Gorton, Lo and Ruzgas, Tautgirdas and Karyakin, A},
  issn         = {1040-0397},
  language     = {eng},
  number       = {3},
  pages        = {175--182},
  publisher    = {John Wiley & Sons},
  series       = {Electroanalysis},
  title        = {Investigation of the effect of different glassy carbon materials on the performance of Prussian blue based sensors for hydrogen peroxide},
  url          = {http://dx.doi.org/10.1002/elan.200390021},
  volume       = {15},
  year         = {2003},
}