Abidin GÜmrÜkÇÜoĞlu1, Aysel BaŞoĞlu2, Sevgi BaŞoĞlu1, Saliha BaŞoĞlu3, Meryem BaŞoĞlu4, Miraç BaŞoĞlu1, Ümmühan BaŞoĞlu1. 1. Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, Trabzon Turkey. 2. Department of Occupational Health and Safety, Faculty of Health Sciences, Gümüşhane University, Gümüşhane Turkey. 3. Organic Farming Management, Çumra School of Applied Sciences, Selçuk University, Konya Turkey. 4. Advanced Technology Research & Application Center, Çumra Vocational School, Selçuk University, Konya Turkey.
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 μM. The detection limit of the assay was 0.18 μM. Acceptable recovery results were obtained via spike-recovery experiments on cookie samples.
Nitrogen-n class="Chemical">dopedcarbon 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 μM. The detection limit of the assay was 0.18 μM. Acceptable recovery results were obtained via spike-recovery experiments on cookie samples.
Authors: Haitao Li; Xiaodie He; Zhenhui Kang; Hui Huang; Yang Liu; Jinglin Liu; Suoyuan Lian; Chi Him A Tsang; Xiaobao Yang; Shuit-Tong Lee Journal: Angew Chem Int Ed Engl Date: 2010-06-14 Impact factor: 15.336