Synergistical accumulation for electrochemical sensing of 1-hydroxypyrene on electroreduced graphene oxide electrode
| Autor: | Tian-Tian Ma, Ding Hongliu, Xiaofang Shen, Yi Zhang, Xiulan Sun, Yuehong Pang |
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| Rok vydání: | 2019 |
| Předmět: |
Detection limit
Chemistry Graphene Calibration curve 010401 analytical chemistry Inorganic chemistry Oxide chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry law.invention chemistry.chemical_compound Adsorption law Electrode 0210 nano-technology Carbon |
| Zdroj: | Talanta. 192:387-394 |
| ISSN: | 0039-9140 |
| DOI: | 10.1016/j.talanta.2018.08.042 |
| Popis: | 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 5–300 nM (R2 = 0.997), a limit of detection of 0.84 nM (S/N = 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%. |
| Databáze: | OpenAIRE |
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