| Autor: |
Ramoğlu, Bahtışen, Gümrükçüoğlu, Abidin, Çekirge, Ender, Ocak, Miraç, Ocak, Ümmühan |
| Předmět: |
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| Zdroj: |
Journal of Fluorescence; Nov2021, Vol. 31 Issue 6, p1587-1598, 12p |
| Abstrakt: |
A simple microwave-assisted synthesis of nitrogen-doped carbon dots with high oxygen content (O-N-CDs) was carried out with citric acid as a carbon source and 2,4-diamino-6-methyl-1,3,5-triazine as a nitrogen source in triethylene glycol (TEG) media. It was determined by SEM analysis that O-N-CDs consisted of particles of different sizes and shapes. Transmission electron microscopy (TEM), Raman spectroscopy, and X-ray diffraction (XRD) analysis confirmed that O-N-CDs have a graphitic structure. Moreover, they showed a high fluorescence property based on the excitation wavelength. Therefore, a new fluorometric method was developed for the determination of banned food dye Sudan II by using the O-N-CDs. The proposed method was used in the determination of Sudan II in spiked spice samples. The detection limit was 0.6 mg L−1 and the linear range was 0–8 mg L−1. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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