Sodium dodecyl sulfate modified carbon nanotubes paste electrode as a novel sensor for the simultaneous determination of dopamine, ascorbic acid, and uric acid

Jamballi G. Manjunatha, Mohamad Deraman, Nur Hamizah Basri, Najah Syahirah Mohd Nor, Ibrahim Abu Talib, Narges Ataollahi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

A novel modified multiwall carbon nanotubes paste electrode with sodium dodecyl sulfate as a surfactant (SDS) has been fabricated through an electrochemical oxidation procedure and was used to electrochemically detect dopamine (DA), ascorbic acid (AA), uric acid (UA), and their mixture by cyclic voltammetry (CV) and differential voltammetry (DPV) methods. Several factors affecting the electrocatalytic activity of the hybrid material, such as the effect of pH, of the scan rate and of the concentration were studied. The bare carbon nanotubes paste electrode (BCNTPE) and SDS-modified carbon nanotubes paste electrode (SDSMCNTPE) were characterized using Field Emission Scanning Electron Microscopy (FESEM) and Energy-Dispersive X-ray spectroscopy (EDX). Using the CV procedure, a linear analytical curve was observed in the 1 × 10-6-2.8 × 10-5 M range with a detection limit at 3.3 × 10-7 M in pH 6.5, 0.2 M phosphate buffer solutions (PBS).

Original languageEnglish
Pages (from-to)465-476
Number of pages12
JournalComptes Rendus Chimie
Volume17
Issue number5
DOIs
Publication statusPublished - 2014

Fingerprint

Carbon Nanotubes
Ascorbic acid
Sodium dodecyl sulfate
Ointments
Uric Acid
Sodium Dodecyl Sulfate
Ascorbic Acid
Dopamine
Carbon nanotubes
Electrodes
Cyclic voltammetry
Acids
Sensors
Electrochemical oxidation
Hybrid materials
Voltammetry
Surface-Active Agents
Field emission
Buffers
Phosphates

Keywords

  • Ascorbic acid
  • Carbon paste electrodes
  • Cyclic voltammetry
  • Dopamine
  • SDS
  • Uric acid

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Sodium dodecyl sulfate modified carbon nanotubes paste electrode as a novel sensor for the simultaneous determination of dopamine, ascorbic acid, and uric acid. / Manjunatha, Jamballi G.; Deraman, Mohamad; Basri, Nur Hamizah; Nor, Najah Syahirah Mohd; Talib, Ibrahim Abu; Ataollahi, Narges.

In: Comptes Rendus Chimie, Vol. 17, No. 5, 2014, p. 465-476.

Research output: Contribution to journalArticle

Manjunatha, Jamballi G. ; Deraman, Mohamad ; Basri, Nur Hamizah ; Nor, Najah Syahirah Mohd ; Talib, Ibrahim Abu ; Ataollahi, Narges. / Sodium dodecyl sulfate modified carbon nanotubes paste electrode as a novel sensor for the simultaneous determination of dopamine, ascorbic acid, and uric acid. In: Comptes Rendus Chimie. 2014 ; Vol. 17, No. 5. pp. 465-476.
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