Highly sensitive fluorometric method based on nitrogen-doped carbon dot clusters for tartrazine determination in cookies samples

Gumrukcuoglu A., Basoglu A., KOLAYLI S., Ding S., KARA M., OCAK M., ...More

TURKISH JOURNAL OF CHEMISTRY, vol.44, no.1, pp.99-114, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 1
  • Publication Date: 2020
  • Doi Number: 10.3906/kim-1903-28
  • Journal Name: TURKISH JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.99-114
  • Keywords: Carbon dot, amorphous, fluorescence, tartrazine, determination method, cookie, PERFORMANCE LIQUID-CHROMATOGRAPHY, QUANTUM DOTS, GREEN SYNTHESIS, SYNTHETIC DYES, NANOPARTICLES, EXTRACTION, FOODSTUFFS, DRINKS, ION
  • Karadeniz Technical University Affiliated: Yes

Abstract

Nitrogen-doped carbon nanodots (CDs) were prepared via the solvothermal method, using urea and triethylene glycol as the starting materials. The as-prepared CDs had individual diameters of approximately 100 nm and were in clusters of different sizes. The surface composition and optical properties of the as-prepared CDs were characterized. They exhibited multicolor emission properties in the visible range when excited with a wide wavelength range. The aqueous solution of the CDs was used in highly sensitive tartrazine determination. The fluorescence quenching of the CDs was in a linear relationship with the concentrations of tartrazine in the range of 0.5-30.0 mu M. The detection limit of the assay was 0.18 mu M. Acceptable recovery results were obtained via spike-recovery experiments on cookie samples.