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《Electrochemistry》 2011-04
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The Electrochemical Behaviors of Hydroquinone on Polypyrrole/STAB-NaMMT/GC Electrode

LI Rong,XIONG Jian,ZHU Wei-qiong,HAN Yuan-yuan,XU Jin,HE Xiao-ying(Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Industry,China West Normal University, Nanchong 637002,Sichuan,China)  
The PPy/STAB-MMT/GC electrode was made using montmorillonite modified by STAB and polypyrrole(PPy).The electrochemical behaviors of hydroquinone on the PPy/STAB-MMT/GC electrode were researched by cyclic voltammetry and square wave stripping voltammetry(SWSV).The results showed that the electrode reaction occurred on the hydroquinone electrode was controlled by diffusion in PBS(pH=6.0).The number of electron transfer was equal to the number of protons(n=m=1) with the effective area of PPy/STAB-NaMMT/GC electrode Aeff=0.031 cm2.Under the optimized conditions,the linear response of peak current in SWSV with the concentration of hydroquinone in a range of 8.0×10-6~8.0×10-4 mol/L was observed,and the detect limitation was 1.0×10-6 mol/L.The recovery of hydroquinone to testing requirements was satisfactory.
【Fund】: 四川省教育厅(08zc007)项目资助
【CateGory Index】: O657.1
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