Department of Chemistry, Panjab University, 160014, Chandigarh, India.
J Fluoresc. 2022 Sep;32(5):1913-1919. doi: 10.1007/s10895-022-02994-3. Epub 2022 Jun 25.
A simple uracil-appended fluorescent sensor (1) has been developed by one pot reaction and characterized by using common spectroscopic methods such as UV-vis, Fluorescence, HRMS and FT-IR analyses. Upon addition of various metal ions to the CHCN solution of sensor 1, the fluorescence was quenched in the presence of Cu / Hg ions. The limit of detection for Cu and Hg was calculated to be 3.31 and 0.316 µM, respectively. Further, the sensor was applied for real-life applications in the determination of Vitamin B (riboflavin) and its presence in milk products. With the incorporation of different sources of vitamin-B to acetonitrile solution of it, there was discernible fluorescence enhancement only in the presence of vitamin B. Also, it has been successfully applied for the detection of Vitamin B (riboflavin) in milk and curd. Moreover, based on the fluorescent color changes, the sensor was utilized for invisible ink applications.
通过一锅反应，开发了一种简单的尿嘧啶修饰荧光传感器（1），并通过常用的光谱方法如 UV-vis、荧光、高分辨率质谱和傅里叶变换红外分析对其进行了表征。向传感器 1 的 CHCN 溶液中加入各种金属离子后，在存在 Cu/Hg 离子的情况下，荧光被猝灭。Cu 和 Hg 的检测限分别计算为 3.31 和 0.316 µM。此外，该传感器还应用于实际生活中维生素 B（核黄素）的测定及其在乳制品中的存在。将不同来源的维生素 B 加入到乙腈溶液中，只有在存在维生素 B 的情况下才会出现明显的荧光增强。此外，它还成功地应用于牛奶和凝乳中维生素 B（核黄素）的检测。此外，基于荧光颜色变化，该传感器还用于隐形墨水应用。
