Research output: Contribution to Journal/Magazine › Journal article › peer-review
The non-enzymatic determination of glucose using an electrolytically fabricated nickel microparticle modified boron-doped diamond electrode or nickel foil electrode. / Toghill, Kathryn E.; Xiao, Lei; Phillips, Michael A. et al.
In: Sensors and Actuators B: Chemical, Vol. 147, No. 2, 03.06.2010, p. 642-652.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The non-enzymatic determination of glucose using an electrolytically fabricated nickel microparticle modified boron-doped diamond electrode or nickel foil electrode
AU - Toghill, Kathryn E.
AU - Xiao, Lei
AU - Phillips, Michael A.
AU - Compton, Richard G.
PY - 2010/6/3
Y1 - 2010/6/3
N2 - A nickel modified boron-doped diamond (Ni-BDD) electrode or nickel foil electrode were used in the nonenzymatic determination of glucose in alkaline solutions. The Ni-BDD electrode was electrodeposited from a 1 mM Ni(NO(3))(2) solution (pH 5), followed by repeat cycling in KOH. Subsequent analysis utilised the Ni(OH)(2)/NiOOH redox couple to electrocatalyse the oxidation of glucose.Glucose was determined to limits of 2.7 mu M with a sensitivity of 1.04 mu A mu M(-1) cm(-2) at the Ni-BDD electrode. The foil electrode was comparably sensitive achieving a limit of 1.8 mu M but a relatively lower sensitivity of 0.67 mu A mu M(-1) cm(-2). SEM analysis of the electrodes found the Ni-BDD to be modified by a quasi-random microparticle assembly, with approximately 7.6 mu g cm(-2) of nickel present on the surface. (C) 2010 Elsevier B.V. All rights reserved.
AB - A nickel modified boron-doped diamond (Ni-BDD) electrode or nickel foil electrode were used in the nonenzymatic determination of glucose in alkaline solutions. The Ni-BDD electrode was electrodeposited from a 1 mM Ni(NO(3))(2) solution (pH 5), followed by repeat cycling in KOH. Subsequent analysis utilised the Ni(OH)(2)/NiOOH redox couple to electrocatalyse the oxidation of glucose.Glucose was determined to limits of 2.7 mu M with a sensitivity of 1.04 mu A mu M(-1) cm(-2) at the Ni-BDD electrode. The foil electrode was comparably sensitive achieving a limit of 1.8 mu M but a relatively lower sensitivity of 0.67 mu A mu M(-1) cm(-2). SEM analysis of the electrodes found the Ni-BDD to be modified by a quasi-random microparticle assembly, with approximately 7.6 mu g cm(-2) of nickel present on the surface. (C) 2010 Elsevier B.V. All rights reserved.
KW - Nickel
KW - Microparticles
KW - Boron-doped diamond
KW - Electrocatalysis
KW - Glucose
KW - Non-enzymatic
KW - GLASSY-CARBON ELECTRODE
KW - NANOPOROUS PLATINUM-ELECTRODES
KW - NANOTUBE HYBRID NANOSTRUCTURES
KW - CHEMICALLY-MODIFIED ELECTRODE
KW - FLOW-INJECTION ANALYSIS
KW - THIN-FILM ELECTRODES
KW - ELECTROCHEMICAL DETECTION
KW - LIQUID-CHROMATOGRAPHY
KW - ELECTROCATALYTIC OXIDATION
KW - ALLOY ELECTRODE
U2 - 10.1016/j.snb.2010.03.091
DO - 10.1016/j.snb.2010.03.091
M3 - Journal article
VL - 147
SP - 642
EP - 652
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
SN - 0925-4005
IS - 2
ER -