| Autor: |
TIAN Ye, SONG Ziwei, LI Shuguo |
| Jazyk: |
English<br />Chinese |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Shipin Kexue, Vol 45, Iss 12, Pp 261-268 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1002-6630 |
| DOI: |
10.7506/spkx1002-6630-20230819-136 |
| Popis: |
In this study, in order to establish an electrochemical method for the rapid and sensitive determination of benzo[a]pyrene (BaP) in barbecued meat products, a Fe3O4/multi-walled carbon nanotubes (MWCNTs)-COOH/Nafion/glassy carbon electrode (GCE) electrochemical sensor was prepared using magnetic ferric oxide (Fe3O4), MWCNTs-COOH and Nafion as composite modifying materials and a GCE as carrier. The optimal conditions were determined as follows: disodium hydrogen phosphate-potassium dihydrogen phosphate solution at pH 2.5 as electrolyte solution, 0.5% Nafion as dispersant, 6 µL of modifying solution (2 mg/mL), and enrichment time 15 min. Under these conditions, there was a good linear relationship between BaP concentration in the range of 0–100 nmol/L and peak current, with a determination coefficient (R2) of 0.997 0. The detection limit of this method was 3.12 × 10–10 mol/L, and the spiked recoveries ranged from 86.65% to 96.97%. In conclusion, the electrochemical sensor has good stability and reproducibility and is suitable for the rapid detection of BaP in barbecued meat products. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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