Electrochemical sensor based on molecularly imprinted film at polypyrrole-sulfonated graphene/hyaluronic acid-multiwalled carbon nanotubes modified electrode for determination of tryptamine

2012 ◽  
Vol 31 (1) ◽  
pp. 277-283 ◽  
Author(s):  
Xianrong Xing ◽  
Su Liu ◽  
Jinghua Yu ◽  
Wenjing Lian ◽  
Jiadong Huang
Keyword(s):  
Carbon Nanotubes ◽  
Hyaluronic Acid ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Multiwalled Carbon ◽  
Molecularly Imprinted ◽  
Sulfonated Graphene ◽  
Molecularly Imprinted Film

scholarly journals First Electrochemical Sensor (Screen-Printed Carbon Electrode Modified with Carboxyl Functionalized Multiwalled Carbon Nanotubes) for Ultratrace Determination of Diclofenac

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 781 ◽  
Author(s):  
Agnieszka Sasal ◽  
Katarzyna Tyszczuk-Rotko ◽  
Magdalena Wójciak ◽  
Ireneusz Sowa
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Active Surface Area ◽  
Carbon Electrode ◽  
Multiwalled Carbon ◽  
Screen Printed Carbon Electrode ◽  
Functionalized Multiwalled Carbon Nanotubes ◽  
Screen Printed

A simple, sensitive and time-saving differential-pulse adsorptive stripping voltammetric (DPAdSV) procedure using a screen-printed carbon electrode modified with carboxyl functionalized multiwalled carbon nanotubes (SPCE/MWCNTs-COOH) for the determination of diclofenac (DF) is presented. The sensor was characterized using optical profilometry, SEM, and cyclic voltammetry (CV). The use of carboxyl functionalized MWCNTs as a SPCE modifier improved the electron transfer process and the active surface area of sensor. Under optimum conditions, very sensitive results were obtained with a linear range of 0.1–10.0 nmol L−1 and a limit of detection value of 0.028 nmol L−1. The SPCE/MWCNTs-COOH also exhibited satisfactory repeatability, reproducibility, and selectivity towards potential interferences. Moreover, for the first time, the electrochemical sensor allows determining the real concentrations of DF in environmental water samples without sample pretreatment steps.

Electroanalytical determination of carbendazim by square wave adsorptive stripping voltammetry with a multiwalled carbon nanotubes modified electrode

2011 ◽  
Vol 3 (5) ◽  
pp. 1202 ◽  
Author(s):  
Williame Farias Ribeiro ◽  
Thiago Matheus Guimarães Selva ◽  
Ilanna Campelo Lopes ◽  
Elaine Cristina S. Coelho ◽  
Sherlan Guimarães Lemos ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Stripping Voltammetry ◽  
Adsorptive Stripping Voltammetry ◽  
Multiwalled Carbon ◽  
Square Wave

Modification of a disposable pencil graphite electrode with multiwalled carbon nanotubes: application to electrochemical determination of diclofenac sodium in some pharmaceutical and biological samples

2016 ◽  
Vol 8 (19) ◽  
pp. 3966-3974 ◽  
Author(s):  
Golnaz Parvizi Fard ◽  
Esmaeel Alipour ◽  
Reza Emam Ali Sabzi
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Biological Samples ◽  
Graphite Electrode ◽  
Diclofenac Sodium ◽  
Electrochemical Determination ◽  
Pencil Graphite Electrode ◽  
Multiwalled Carbon

A MWCNTs/PGE was developed as an electrochemical sensor and used for the determination of diclofenac sodium (DIC).

Sign in / Sign up

Export Citation Format

Share Document