Amperometric Determination of Glucose in White Grape and in Tablets as Ingredient by Screen-Printed Electrode Modified with Glucose Oxidase and Composite of Platinum and Multiwalled Carbon Nanotubes

2018 ◽  
Vol 12 (2) ◽  
pp. 570-580 ◽  
Author(s):  
Valéria Guzsvány ◽  
Jasmina Anojčić ◽  
Olga Vajdle ◽  
Emil Radulović ◽  
Dániel Madarász ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Glucose Oxidase ◽  
Multiwalled Carbon Nanotubes ◽  
Screen Printed Electrode ◽  
Multiwalled Carbon ◽  
Amperometric Determination ◽  
Screen Printed

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.

Binary nanocomposite based on Co3O4 nanocubes and multiwalled carbon nanotubes as an ultrasensitive platform for amperometric determination of dopamine

2017 ◽  
Vol 184 (8) ◽  
pp. 2739-2748 ◽  
Author(s):  
Arshid Numan ◽  
Muhammad Mehmood Shahid ◽  
Fatin Saiha Omar ◽  
Saqib Rafique ◽  
Shahid Bashir ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Amperometric Determination

Construction and application of β-(3-N-oxalyl-l-2,3-diaminopropanoic acid) biosensor based on carboxylated multiwalled carbon nanotubes/gold nanoparticles/chitosan/Au electrode

RSC Advances ◽  
2014 ◽  
Vol 4 (80) ◽  
pp. 42723-42731 ◽  
Author(s):  
Bhawna Batra ◽  
C. S. Pundir
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Enzyme Electrode ◽  
Multiwalled Carbon ◽  
Amperometric Determination ◽  
Au Electrode ◽  
Diaminopropanoic Acid

We describe the construction of a new enzyme electrode (GluOx/cMWCNT/AuNPs/CHIT/Au) and its application for the amperometric determination of β-ODAP (3-N-oxalyl-L-2,3-diaminopropanoic acid) in Lathyrus seeds.

Sign in / Sign up

Export Citation Format

Share Document