基于 MOF 衍生剥离多孔碳的氯霉素高灵敏度电化学传感器。
Highly sensitive electrochemical sensor for chloramphenicol based on MOF derived exfoliated porous carbon.
机构信息
Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Laboratory of Environmental Science and Technology, The Xinjiang Technical Institute of Physics and Chemistry; Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China.
出版信息
Talanta. 2017 May 15;167:39-43. doi: 10.1016/j.talanta.2017.01.078. Epub 2017 Feb 3.
Benefit from the advantages in costless, simplicity and efficiency, solvent exfoliation has been widely used in preparation of two-dimensional nanosheets with enhanced performances in electronics, photonics, and catalysis. In this work, solvent exfoliation was first applied to prepare exfoliated porous carbon (EPC) from an isoreticular metal-organic framework-8 (IRMOF-8) derived porous carbon (DPC). The obtained EPC with high surface area (1854mg) and improved dispersibility was used as electrode modifier for glassy carbon electrode (GCE) in square wave voltammetry (SWV) detection of chloramphenicol (CAP). The sensitivity of EPC modified GCE (EPC/GCE) was greatly improved in compare with that of the DPC modification. The corresponding linear ranges are 1×10-1×10molL and 1×10-4×10molL. The detection limit was calculated to be 2.9×10molL (at a signal-to-noise ratio of 3, S/N=3). In addition, the proposed sensor was successfully applied in the analysis of CAP in honey and achieved satisfying recovery.
溶剂剥离具有成本低、操作简单、效率高的优点，已被广泛应用于二维纳米片的制备，以提高其在电子、光子和催化等领域的性能。本工作首次将溶剂剥离应用于由等孔金属有机骨架-8（IRMOF-8）衍生的多孔碳（DPC）制备剥离多孔碳（EPC）。得到的具有高比表面积（1854mg）和良好分散性的 EPC 用作玻碳电极（GCE）的电极修饰剂，在方波伏安法（SWV）检测氯霉素（CAP）中具有较高的灵敏度。与 DPC 修饰相比，EPC 修饰的 GCE（EPC/GCE）的灵敏度大大提高。相应的线性范围为 1×10-1×10molL 和 1×10-4×10molL。检测限计算为 2.9×10molL（信噪比为 3，S/N=3）。此外，该传感器还成功应用于蜂蜜中 CAP 的分析，取得了令人满意的回收率。
Zotero 插件