Synergistical accumulation for electrochemical sensing of 1-hydroxypyrene on electroreduced graphene oxide electrode.
Talanta
; 192: 387-394, 2019 Jan 15.
Article
em En
| MEDLINE
| ID: mdl-30348407
ABSTRACT
A graphene modified glassy carbon electrode was fabricated for sensitive and convenient electrochemical detection of 1-hydroxypyrene (1-OHP). The graphene modified electrode was prepared by eletrochemical reduction of graphene oxide on glass carbon electrode. l-OHP was synergistically accumulated on the graphene modified electrode via π-π conjugate adsorption and electrochemical oxidation. Electrochemical behavior of l-OHP on the graphene modified glass carbon electrode was studied in detail. The developed method gave a linear calibration curve for the determination of 1-OHP in the range of 5-300â¯nM (R2 =â¯0.997), a limit of detection of 0.84â¯nM (S/Nâ¯=â¯3). The proposed method was also successfully applied to the analysis of urine samples for l-OHP with the recoveries of 97.3-101.1%.
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MEDLINE
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En
Ano de publicação:
2019
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Article