Amperometric detection of acetaminophen by an electrochemical sensor based on cobalt oxide nanoparticles in a flow injection system
作者： Habib Razmi , Esmaeil Habibi
DOI: 10.1016/J.ELECTACTA.2010.07.081
关键词:
摘要: Abstract This paper reports the use of a carbon ceramic electrode as highly-porous substrate for electrochemical formation cobalt oxide nanoparticles. The electrocatalyst was characterized by energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and cyclic voltammetry techniques, it used in homemade flow injection analysis (FIA) system acetaminophen determination using 0.1 M KOH carrier solution. rate constant (ks) charge transfer coefficient (α) were calculated exchange reaction modified film. kinetic parameters mechanism electrooxidation at surface studied chronoamperometry. effects working potential on performance FIA studied. Under optimized conditions, response due to electrocatalytic oxidation 450 mV (vs. SCE) is proportional concentration over 5–35 μM range with an associated detection limit (S/N = 3) 0.37 μM sensitivity 0.0296 μA/μM. relative standard deviation (RSD) 1.6% eight replicate measurements. determine content tablet samples.
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sci-hub.se 参考文章(36)
Zbigniew Galus, Fundamentals of electrochemical analysis Ellis Horwood , Halsted Press, a division of Wiley. ,(1976)
[edited by] Josae A. Rodraiguez, Marcos Fernaandez-Garcaia, Synthesis, properties, and applications of oxide nanomaterials : Wiley-Interscience,. ,(2007)
S. P. Jiang, Z. G. Lin, A. C. C. Tseung, Homogeneous and Heterogeneous Catalytic Reactions in Cobalt Oxide/Graphite Air Electrodes II . Homogeneous Role of Co(II) Ions during Oxygen Reduction on Electrodes Journal of The Electrochemical Society. ,vol. 137, pp. 764- 769 ,(1990) , 10.1149/1.2086551
L.M. Da Silva, J.F.C. Boodts, L.A. De Faria, Oxygen evolution at RuO2(x)+Co3O4(1−x) electrodes from acid solution Electrochimica Acta. ,vol. 46, pp. 1369- 1375 ,(2001) , 10.1016/S0013-4686(00)00716-7
Abdollah Salimi, Rahman Hallaj, Saied Soltanian, Hussein Mamkhezri, Nanomolar detection of hydrogen peroxide on glassy carbon electrode modified with electrodeposited cobalt oxide nanoparticles. Analytica Chimica Acta. ,vol. 594, pp. 24- 31 ,(2007) , 10.1016/J.ACA.2007.05.010
Eiji Hosono, Shinobu Fujihara, Iraru Honma, Masaki Ichihara, Haoshen Zhou, Synthesis of the CoOOH fine nanoflake film with the high rate capacitance property Journal of Power Sources. ,vol. 158, pp. 779- 783 ,(2006) , 10.1016/J.JPOWSOUR.2005.09.052
Kun Qiao, Naifei Hu, Direct electron transfer and electrocatalysis of myoglobin loaded in layer-by-layer films assembled with nonionic poly(ethylene glycol) and ZrO2 nanoparticles Bioelectrochemistry. ,vol. 75, pp. 71- 76 ,(2009) , 10.1016/J.BIOELECHEM.2009.01.001
K. Nakaoka, M. Nakayama, K. Ogura, Electrochemical Deposition of Spinel-Type Cobalt Oxide from Alkaline Solution of Co2 + with Glycine Journal of The Electrochemical Society. ,vol. 149, ,(2002) , 10.1149/1.1446871
Brian L. Cushing, Vladimir L. Kolesnichenko, Charles J. O'Connor, Recent advances in the liquid-phase syntheses of inorganic nanoparticles. Chemical Reviews. ,vol. 104, pp. 3893- 3946 ,(2004) , 10.1021/CR030027B
F Švegl, B Orel, I Grabec-Švegl, V Kaučič, Characterization of spinel Co3O4 and Li-doped Co3O4 thin film electrocatalysts prepared by the sol–gel route Electrochimica Acta. ,vol. 45, pp. 4359- 4371 ,(2000) , 10.1016/S0013-4686(00)00543-0