Highly sensitive electrochemical sensor for chloramphenicol based on MOF derived exfoliated porous carbon.
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 (1854m2g-1) 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 1×10-8-1×10-6molL-1and 1×10-6-4×10-6molL-1. The detection limit was calculated to be 2.9×10-9molL-1(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.
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.
Lili
L
Xiao
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.
Ruiyu
R
Xu
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. Electronic address: yuanqunhui@hit.edu.cn.
Qunhui
Q
Yuan
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. Electronic address: wangfu@ms.xjb.ac.cn.
Fu
F
Wang
D002244:Carbon / Q000737:chemistry*; D002701:Chloramphenicol / Q000032:analysis* / Q000737:chemistry; D004563:Electrochemistry / Q000295:instrumentation*; D004566:Electrodes; D005504:Food Analysis; D057230:Limit of Detection; D009942:Organometallic Compounds / Q000737:chemistry*; D016062:Porosity; D012997:Solvents / Q000737:chemistry
D009942:Organometallic Compounds; D012997:Solvents; D002701:Chloramphenicol; D002244:Carbon
Chloramphenicol; Exfoliated porous carbon; MOF derived carbon; Square wave voltammetry