Related Experiment Video
Updated: Feb 5, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
Published on: February 2, 2012
Simultaneous Detection of Hydroquinone and Catechol Using Platinum Nanoparticles Decorated
Xiaomei Huang1, Xiang Deng1, Wenjing Qi2
1Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou, Sichuan 635000, P. R. China.
Abstract:
Graphene cyclodextrin prepolymer (pre-CD)-multiwall carbon nanotubes (Gr-CDP-MWCNTs) nanocomposites modified on glassy carbon electrode (Gr-CDP-MWCNTs/GCE) are prepared and then platinum particles (PtNPs) are electrodeposited on it. The simultaneous determination of hydroquinone (HQ) and catechol (CC) at PtNPs/Gr-CDP-MWCNTs/GCE is reported in the present work. Synergistic effect of nanomaterials, host-guest chemical reaction ability of CDP, the stacking interaction between detected molecules and Gr-MWCNTs surface are considered as the main reasons of successfully simultaneous detection of HQ and CC. Cyclic voltammetry (CV), scanning electron microscopy (SEM) and different pulse voltammetry (DPV) are employed to characterize the proposed PtNPs/Gr-CDP-MWCNTs electrochemical biosensor. The prepared PtNPs/Gr-CDP-MWCNTs sensor shows linear response ranges of 0.05-27.2 μM and 0.1-27.2 μM and have low detection limits (S/N = 3) of 0.015 μM and 0.03 μM for simultaneous electrochemical determination of HQ and CC, respectively. It is also applied for the measurement of HQ and CC in local river water samples with recoveries from 98.0 to 102.0% and from 99.3 to 101.5%.
Related Concept Videos
The Carbon Cycle
Carbon Skeletons
Carbonation Shrinkage
The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction...
Carbon-dioxide Fixation
Carbon-13 (¹³C) NMR: Overview
Carbon Dioxide Transport in the Blood
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...

