Molecularly Imprinted Polypyrrole on Glassy Carbon Electrode Modified with Reduced Graphene Oxide and Gold Nanoparticles for Isoamyl Alcohol Analysis in Fusel Oil
A molecularly imprinted electrochemical sensor for determination of isoamyl alcohol was successfully constructed by modifying the glassy carbon electrode (GCE) with gold nanoparticles (AuNPs) and reduced graphene oxide (RGO). The modification of the GCE increased the electron transfer rate and the electrode surface area, which, consequently, made more room available for the formation of the molecularly imprinted polymer (MIP). The development of the MIP on the modified surface was carried out via electropolymerization of the pyrrole in acetate buffer solution in the presence of the target molecule. The MIP-AuNPs-RGO/GCE showed low limit of detection (8.4 x 10(-8) mol L-1), satisfactory quantification range, amperometric sensitivity of 1.1 A L mol(-1), excellent reproducibility and stability. Even when in the presence of analogous molecules, the sensor exhibited excellent selectivity. These results suggest that the proposed sensor is suitable for the detection of isoamyl alcohol in fusel oil samples.
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Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, ItalySao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Beluomini, Maisa Azevedo
Karimian, Najmeh
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Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, ItalySao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Karimian, Najmeh
Stradiotto, Nelson Ramos
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Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Sao Paulo State Univ UNESP, Bioenergy Res Inst, BR-13500230 Sao Paulo, Brazil
Fluminense Fed Univ UFF, Sch Met & Ind Engn, BR-27255125 Rio De Janeiro, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
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Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Beluomini, Maisa Azevedo
da Silva, Jose Luiz
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Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
da Silva, Jose Luiz
Stradiotto, Nelson Ramos
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Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Sao Paulo State Univ UNESP, Bioenergy Res Inst, BR-13500230 Sao Paulo, Brazil
UFF, Sch Met & Ind Engn, BR-27255125 Rio De Janeiro, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
机构:
Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, ItalySao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Beluomini, Maisa Azevedo
Karimian, Najmeh
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h-index: 0
机构:
Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, ItalySao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Karimian, Najmeh
Stradiotto, Nelson Ramos
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h-index: 0
机构:
Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Sao Paulo State Univ UNESP, Bioenergy Res Inst, BR-13500230 Sao Paulo, Brazil
Fluminense Fed Univ UFF, Sch Met & Ind Engn, BR-27255125 Rio De Janeiro, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
机构:
Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Beluomini, Maisa Azevedo
da Silva, Jose Luiz
论文数: 0引用数: 0
h-index: 0
机构:
Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
da Silva, Jose Luiz
Stradiotto, Nelson Ramos
论文数: 0引用数: 0
h-index: 0
机构:
Sao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil
Sao Paulo State Univ UNESP, Bioenergy Res Inst, BR-13500230 Sao Paulo, Brazil
UFF, Sch Met & Ind Engn, BR-27255125 Rio De Janeiro, BrazilSao Paulo State Univ UNESP, Inst Chem, BR-14800060 Sao Paulo, Brazil