Meng Lifen, Wu Haizhi
School of Chemical Engineering, Guizhou University of Engineering Science 551700 Bijie China
School of Mining Engineering, Guizhou University of Engineering Science Bijie 551700 China.
RSC Adv. 2024 May 13;14(22):15499-15506. doi: 10.1039/d4ra01388c. eCollection 2024 May 10.
A novel metal-doped carbon quantum dot, zinc-chlorine co-doped carbon quantum dots (Zn/Cl-CQDs), has been developed for the fluorescent probe detection of vitamin B2 and the analysis of the correlation properties of this carbon quantum dot and vitamin B2. Stability experiments demonstrate that Zn/Cl-CQDs possess good fluorescence properties under alkaline conditions. However, when vitamin B2 is added into Zn/Cl-CQDs, the fluorescence intensity decreases sharply, indicating that the fluorescence sensor shows rapid and sensitive detection of vitamin B2 under the static quenching. Lastly, the use of Zn/Cl-CQDs in the detection of vitamin B2 tablets and vitamin B2-rich fruits resulted in recovery rates of 98.2% and 100.6%, respectively. Therefore, this method can be well applied to the detection and analysis of vitamin B2, and has great development prospects in the pharmaceutical industry and food monitoring fields.
一种新型的金属掺杂碳量子点，即锌-氯共掺杂碳量子点（Zn/Cl-CQDs），已被开发用于维生素B2的荧光探针检测以及该碳量子点与维生素B2相关性质的分析。稳定性实验表明，Zn/Cl-CQDs在碱性条件下具有良好的荧光性质。然而，当向Zn/Cl-CQDs中加入维生素B2时，荧光强度急剧下降，这表明该荧光传感器在静态猝灭下对维生素B2表现出快速且灵敏的检测。最后，将Zn/Cl-CQDs用于检测维生素B2片剂和富含维生素B2的水果，回收率分别为98.2%和100.6%。因此，该方法可很好地应用于维生素B2的检测与分析，在制药工业和食品监测领域具有广阔的发展前景。
