Related Experiment Video
Updated: Feb 11, 2026

Gold Nanoparticle Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection
Published on: May 13, 2019
Efficient detection of hazardous catechol and hydroquinone with MOF-rGO modified carbon paste electrode
Hailong Wang1, Quanqin Hu1, Yuan Meng1
1Department of Chemistry, Shantou University, Guangdong 515063, China.
Abstract:
Reduced graphite oxide (rGO) was incorporated into a metal organic framework (MOF) MIL-101(Cr) for the modification of carbon paste electrode. Taking advantages of the large surface area of MOF and the electrical conductivity of rGO, the resulted electrodes exhibited high sensitivity and reliability in the simultaneous electrochemical identification and quantification of catechol (CC) and hydroquinone (HQ). Specifically, in the mixture solution of catechol and hydroquinone (constant concentration of an analyte), the linear response ranges for catechol and hydroquinone were 10-1400 μM and 4-1000 μM, and detection limits were 4 μM and 0.66 μM (S/N = 3) for individual catechol and hydroquinone, respectively. Therefore, the relatively easy fabrication of modified CPE and its fascinating reliability towards HQ and CC detection may simulate more research interest in the applications of MIL-101(Cr)-rGO composites for electrochemical sensors.
Related Concept Videos
Porosity in Cement Paste
The balance of water to cement in the mix is...
Hazard Rate
Hazard Ratio
For example, in a clinical trial...
The Carbon Cycle
Carbon Skeletons
Standard Electrode Potentials

