Study of Electrochemical Sensor for Nitrite Based on Composites of Zirconium Dioxide Nanoparticles/Reduced Graphene Oxide / 分析化学
Chinese Journal of Analytical Chemistry
;
(12): 502-507, 2017.
Article
in Chinese
| WPRIM
| ID: wpr-511814
ABSTRACT
A nitrite electrochemical sensor based on electrodeposition of zirconium dioxide nanoparticles on reduced graphene oxide modified electrode was successfully constructed for the detection of nitrite. The electrochemical behavior of the modified electrode was investigated by cyclic voltammetry and amperometric i-t curve. Under the optimal conditions, the amperometric i-t curve response of the electrode showed a linear relationship with nitrite concentration in the range of 3.0×10Symbolm_7-1.0×10Symbolm_6 mol/L and 1.0×10Symbolm_6-6.0×10Symbolm_6 mol/L, and the detection limit was 1.0×10Symbolm_7 mol/L (S/N=3). The fabricated sensor exhibited high sensitivity, good stability and high reproducibility. This sensor was applied for the detection of nitrite in sausage samples with favorable recoveries of 93.7%-110.4% and relative standard deviation (RSD) of 1.6%-2.1%.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Analytical Chemistry
Year:
2017
Type:
Article
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