典型文献
Polypyrrole Hollow Nanotubes Loaded with Au and Fe3O4 Nanoparticles for Simultaneous Determination of Ascorbic Acid,Dopamine,and Uric Acid
文献摘要：
An ultrasensitive electrochemical biosensor was fabricated for electroanalytical determination of ascorbic acid(AA),dopamine(DA)and uric acid(UA)individually and simultaneously based on polypyrrole hollow nanotubes loaded with Au and Fe3O4 nanoparticles(NPs)uniformly(Ppy@Au-Fe3O4).The Ppy@Au-Fe3O4 nanotubes were synthesized in one-pot using MoO3 nanorods as templates and the polymerization of Py,the formation of Au and Fe3O4 NPs and the removel of MoO3 templates took place stimultaneously.Electrochemical studies reveal that Ppy@Au-Fe3O4 modified glassy carbon electrode(GCE)possesses excellent electro-catalytic activities toward the oxidation of AA,DA and UA.Their oxidation peak currents increase linearly in the concentration ranges of 1-2000 μmol/L for AA,0.01-25 and 25-300 μmol/L for DA and 0.1-300 μmol/L for UA.Their detection limit values(S/N=3)were calculated as 0.45,0.0049,and 0.051 μmol/L for AA,DA and UA in the individual detection.By changing the concentrations simultaneously,the calibration curves showed linearity to 1000,200,and 200 μmol/L with detection limit of 0.39,0.0060,and 0.060μmol/L for AA,DA,and UA,respectively.Finally,the obtained biosensor was successfully applied to the detection of AA,DA,and UA with satisfactory results on actual samples.
文献关键词：
中图分类号：
作者姓名：
SHEN Congcong;CHEN Yuehua;FENG Beidou;CHI Hongying;ZHANG Hua
作者机构：
College of Chemistry and Chemical Engineering,Henan Normal University,Xinxiang 453007,P.R.China
文献出处：
引用格式：
[1]SHEN Congcong;CHEN Yuehua;FENG Beidou;CHI Hongying;ZHANG Hua-.Polypyrrole Hollow Nanotubes Loaded with Au and Fe3O4 Nanoparticles for Simultaneous Determination of Ascorbic Acid,Dopamine,and Uric Acid)[J].高等学校化学研究（英文版）,2022(04):941-948
A类：
electroanalytical,removel,stimultaneously
B类：
Polypyrrole,Hollow,Nanotubes,Loaded,Au,Fe3O4,Nanoparticles,Simultaneous,Determination,Ascorbic,Acid,Dopamine,Uric,An,ultrasensitive,electrochemical,biosensor,was,fabricated,determination,ascorbic,acid,AA,dopamine,DA,uric,UA,individually,simultaneously,polypyrrole,hollow,nanotubes,loaded,nanoparticles,NPs,uniformly,Ppy,were,synthesized,one,pot,using,MoO3,nanorods,templates,polymerization,Py,formation,took,place,Electrochemical,studies,reveal,that,modified,glassy,carbon,electrode,GCE,possesses,excellent,catalytic,activities,toward,oxidation,Their,peak,currents,increase,linearly,ranges,detection,limit,values,calculated,By,changing,concentrations,calibration,curves,showed,linearity,respectively,Finally,obtained,successfully,applied,satisfactory,results,actual,samples
AB值：
0.571046
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