simultaneous determination of caffeine and theophylline using square wave voltammetry at poly(l-aspartic acid)/functionalized multi-walled carbon nanotubes composite modified electrode

Clicks: 271
ID: 155620
2017
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #15 of 46 articles by views in crystals

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
A simple and reproducible poly(l-aspartic acid)/functionalized multi-walled carbon nanotubes composite modified glassy carbon electrode, P(LAsp)/f-MWCNTs/GCE, was constructed for simultaneous determination of caffeine and theophylline using square wave voltammetry. The electrode preserves and combines the properties of the individual modifiers synergistically. The electrochemical response of P(LAsp)/f-MWCNTs/GCE was characterized by cyclic voltammetry. A significant enhancement in the peak current response of CF and TP were observed accompanied with a negative shift in peak potential at the composite modified electrode compared to the bare electrode. The prepared P(LAsp)/f-MWCNTs/GCE exhibited excellent SWV response towards the simultaneous detection of CF and TP in the range of 1–150 and 0.1–50μM with limit of detection of 0.28 and 0.02μM (S/N=3), respectively. Real sample analysis has been successfully carried out in green tea, blood serum and pharmaceutical formulation of Panadol extra samples, which revealed good recovery results, 92.0–106%. The proposed sensor also displayed good selectivity, repeatability and reproducibility with appreciable long-term stability, indicating the feasibility and reliability. Keywords: Poly(l-aspartic acid)/functionalized multi-walled carbon nanotubes composite modified electrode, Square wave voltammetry, Simultaneous determination caffeine and theophylline, Green tea, Blood serum, Panadol extra
Reference Key
mekassa2017sensingsimultaneous Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Birhanu Mekassa;Merid Tessema;Bhagwan Singh Chandravanshi
Journal crystals
Year 2017
DOI
DOI not found
URL
http://www.sciencedirect.com/science/article/pii/S2214180417301630
Keywords
engineering (general) civil engineering (general)

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.