Details

Autor(en) / Beteiligte

• Jiang, Xiu-Juan
• Ma, Yuan
• Zhou, You
• Xiao, Rong-Dan
• Meng, Yi-Jie
• Ye-Hou
• Xie, Ben-Ting
• Wu, Lin-Hong
• Zhao, De-Hong

Titel

Green one-step synthesis of N-doped carbon quantum dots for fluorescent detection of lemon yellow in soft drinks

Ist Teil von

• Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2024-08, Vol.316, p.124305, Article 124305

Ort / Verlag

England: Elsevier B.V

Erscheinungsjahr

2024

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •A new N-CQDs was developed via a hydrothermal method.•The N-CQDs can detect lemon yellow successfully.•This sensing system has been successfully used for the analysis of drink samples. A new fluorescent sensor for the determination of lemon yellow was developed based on nitrogen-doped carbon quantum dots (N-CQDs), which were prepared via a hydrothermal method with dried pomelo peel and L-tyrosine. The N-CQDs exhibited the blue fluorescence with a quantum yield of 28 %. The sensing principle of N-CQDs was quenched by lemon yellow via static quenching. The potential interfering substances showed no influence on the detection of lemon yellow. The limit of detection was 0.023 mg/L and lower than that of national standard. Furthermore, the synthesized N-CQDs have been successfully applied to the measurement of lemon yellow in real samples. Hence, the N-CQDs would be a promising sensor in food analysis.