PMID- 19203597
OWN - NLM
STAT- MEDLINE
DCOM- 20090413
LR  - 20191210
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 78
IP  - 2
DP  - 2009 Apr 30
TI  - beta-Sonogel-carbon electrodes: a new alternative for the electrochemical 
      determination of catecholamines.
PG  - 370-6
LID - 10.1016/j.talanta.2008.11.027 [doi]
AB  - In this work, a new alternative for the electrochemical determination of 
      catecholamines based on beta-cyclodextrin-Sonogel-Carbon electrodes is reported. 
      The incorporation of beta-CD and graphite in the preparation of the 
      Sonogel-Carbon material leads to a modification of the electrode surface 
      properties which causes a significant increase in the oxidation peak current of 
      biomolecules such as dopamine, L-epinephrine, D,L-norepinephrine and catechol. 
      This phenomenon might be attributed to the formation of an inclusion complex 
      between beta-CD and the catecholamines. The amount of beta-CD necessary to form 
      the Sonogel electrode was studied and optimization of electrochemical parameters, 
      perm selectivity and mechanical stability of the sensor are discussed. Scanning 
      electron microscopy and electrochemical impedance spectroscopy measurements were 
      employed to characterize the electrical parameters and the structural properties 
      of the new electrode surface, respectively. Cyclic voltammetry (CV) and 
      Adsorptive differential pulse voltammetry (AdDPV) measurements were also used to 
      explore the electrochemical behaviour of the electrode versus the quoted 
      catecholamines. The beta-CD-Sonogel-Carbon electrode offers fast and linear 
      responses towards dopamine, norepinephrine, epinephrine and catechol, with good 
      and low detection limits: 0.164, 0.294, 0.699 and 0.059 micromol L(-1), 
      respectively.
FAU - Izaoumen, Nissrin
AU  - Izaoumen N
AD  - University Abdelmalek Essaadi, Department of Chemistry, Faculty of Sciences of 
      Tetouan, Equipe de Recherche Electrochimie et Systemes Interfaciaux (ERESI). 
      M'Hannech II, B.P. 2121, 93002-Tetouan, Morocco.
FAU - Cubillana-Aguilera, Laura M
AU  - Cubillana-Aguilera LM
FAU - Naranjo-Rodriguez, Ignacio
AU  - Naranjo-Rodriguez I
FAU - de Cisneros, Jose L Hidalgo-Hidalgo
AU  - de Cisneros JL
FAU - Bouchta, Dounia
AU  - Bouchta D
FAU - Temsamani, Khalid R
AU  - Temsamani KR
FAU - Palacios-Santander, Jose M
AU  - Palacios-Santander JM
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20081127
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
RN  - 0 (Catecholamines)
RN  - 0 (Catechols)
RN  - 0 (beta-Cyclodextrins)
RN  - 7440-44-0 (Carbon)
RN  - JV039JZZ3A (betadex)
RN  - LF3AJ089DQ (catechol)
RN  - VTD58H1Z2X (Dopamine)
RN  - X4W3ENH1CV (Norepinephrine)
RN  - YKH834O4BH (Epinephrine)
SB  - IM
MH  - Carbon
MH  - Catecholamines/*analysis
MH  - Catechols/analysis
MH  - Dopamine/analysis
MH  - Electrochemistry/instrumentation/*methods
MH  - *Electrodes
MH  - Epinephrine/analysis
MH  - Norepinephrine/analysis
MH  - Oxidation-Reduction
MH  - beta-Cyclodextrins
EDAT- 2009/02/11 09:00
MHDA- 2009/04/14 09:00
CRDT- 2009/02/11 09:00
PHST- 2008/07/22 00:00 [received]
PHST- 2008/11/18 00:00 [revised]
PHST- 2008/11/20 00:00 [accepted]
PHST- 2009/02/11 09:00 [entrez]
PHST- 2009/02/11 09:00 [pubmed]
PHST- 2009/04/14 09:00 [medline]
AID - S0039-9140(08)00833-3 [pii]
AID - 10.1016/j.talanta.2008.11.027 [doi]
PST - ppublish
SO  - Talanta. 2009 Apr 30;78(2):370-6. doi: 10.1016/j.talanta.2008.11.027. Epub 2008 
      Nov 27.