Enzymatically induced formation of neodymium hexacyanoferrate nanoparticles on the glucose oxidase/chitosan modified glass carbon electrode for the detection of glucose

2008 ◽  
Vol 24 (3) ◽  
pp. 429-434 ◽  
Author(s):  
Qinglin Sheng ◽  
Kai Luo ◽  
Jianbin Zheng ◽  
Hongfang Zhang
Keyword(s):  
Glucose Oxidase ◽  
Carbon Electrode ◽  
Glass Carbon Electrode ◽  
Glass Carbon

Molybdenum Trioxide Dihydrate-Graphene Composite for Electrochemical Detection of Thiourea Molecule

NANO ◽  
2016 ◽  
Vol 11 (03) ◽  
pp. 1650036 ◽  
Author(s):  
Xinmeng Zhang ◽  
Kezhi Li ◽  
Hejun Li ◽  
Jinhua Lu ◽  
Leilei Zhang
Keyword(s):  
Electrochemical Sensor ◽  
Modified Electrode ◽  
Molybdenum Trioxide ◽  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
X Ray ◽  
Glass Carbon Electrode ◽  
Graphene Composite ◽  
Relative Standard ◽  
Glass Carbon

A novel electrochemical sensing platform was constructed based on a facile self-assembly procedure synthetic laminar molybdenum trioxide dihydrate (MoO[Formula: see text]H2O)-graphene composite. Field emission scanning electron microscopy (FESEM), X-ray spectroscopy, X-ray diffraction (XRD) and Raman spectroscopy were employed to characterize the morphology and composition of the MoO[Formula: see text]H2O-graphene composite. As a model molecule, thiourea was utilized to investigate the electrochemical behaviors of the MoO[Formula: see text]H2O-graphene composite modified glass carbon electrode. The results show that the composite modified electrode has higher electron transfer rate than that of graphene modified electrode and bare glass carbon electrode meanwhile the peak currents of it has a good linear relationship with thiourea concentrations in the range of [Formula: see text] ([Formula: see text]) with detection limit of 4.99[Formula: see text][Formula: see text]M ([Formula: see text]). This novel electrochemical sensor exhibits a higher absorption capacity ([Formula: see text][Formula: see text]mol/cm2), a good reproducibility (1.41% relative standard deviation (RSD)), excellent anti-interference and a high stability. These excellent electrochemical properties of the MoO[Formula: see text]H2O-graphene composite are attributed to the loose and porous structure and the synergistic effects between graphene and MoO[Formula: see text]H2O, which make this composite material hold great potential applications for electrochemical sensor.

Novel Acetylcholinesterase Biosensor for Detection of Paraoxon Based on Holey Graphene Oxide Modified Glass Carbon Electrode

2018 ◽  
Vol 30 (10) ◽  
pp. 2258-2264 ◽  
Author(s):  
Yan Ping Li ◽  
Rui Xia Zhao ◽  
Gao Yi Han ◽  
Yao Ming Xiao
Keyword(s):  
Graphene Oxide ◽  
Carbon Electrode ◽  
Glass Carbon Electrode ◽  
Glass Carbon

Electrochemical Behaviour for Europium Doped Tantalum Oxide Coated Glass Carbon Electrode

2012 ◽  
Vol 518-523 ◽  
pp. 860-863
Author(s):  
Yan Hong Zhao ◽  
Chun Mei Zhang ◽  
Ting Liu ◽  
Qiang Qiang Du ◽  
Sheng Liang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electrochemical Reaction ◽  
Electrochemical Behaviour ◽  
Tantalum Oxide ◽  
Carbon Electrode ◽  
Film Electrode ◽  
Glass Carbon Electrode ◽  
Ta2o5 Film ◽  
Glass Carbon ◽  
Potential Applications

Europium doped tantalum oxide (europium-Ta2O5) particles were synthesized with a low temperature hydrothermal method. The electrochemical behaviour of an europium-Ta2O5 film electrode in 0.1 mol dm-3KCl solution containing 5 mmol dm-3K3Fe(CN)6was investigated using cyclic voltgrammetry (CV). The CV results indicated that the europium-Ta2O5film electrode exhibited good stable and reversible electrochemistry properties. The electrochemical reaction of K3Fe(CN)6was a diffusion-controlling process on the europium-Ta2O5film electrode. The europium-Ta2O5particles might have potential applications in electrochemical fields.

Electrochemical detection of trace heavy metal ions using a Ln-MOF modified glass carbon electrode

2020 ◽  
Vol 281 ◽  
pp. 121032 ◽  
Author(s):  
Wei Ye ◽  
Yanping Li ◽  
Jintong Wang ◽  
Bin Li ◽  
Yuanjing Cui ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Carbon Electrode ◽  
Glass Carbon Electrode ◽  
Glass Carbon

Oxidation and detection of L-cysteine using a modified Au/Nafion/glass carbon electrode

2011 ◽  
Vol 54 (3) ◽  
pp. 521-525 ◽  
Author(s):  
XueJi Wang ◽  
LiLi Zhang ◽  
LiXiao Miao ◽  
MeiXiu Kan ◽  
LinLin Kong ◽  
...  
Keyword(s):  
Carbon Electrode ◽  
Glass Carbon Electrode ◽  
Glass Carbon
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