Development of electrochemical biosensor for the determination of palladium ions (Pd2+) using flexible screen printed un-modified carbon electrode

Journal Article

Elshikh, Murugan Velmurugan, Balamurugan Thirumalraj, Shen-Ming Chen, Fahad M.A. Al-Hemaid, M. Ajmal Ali, Mohamed S. . 2017

• Publication Work Type: Research work
• Publication Online URL: Development of electrochemical biosensor for the determination of palladium ions (Pd2+) using flexible screen printed un-modifie
• Magazine \ Newspaper: Journal of Colloid and Interface Science
• Issue Number: January 2017
• Volume Number: 485
• Pages: 123–128

Publication Abstract

To date, the development of different modified electrodes have received much attention in electrochemistry.
The modified electrodes have some drawbacks such as high cost, difficult to handle and not eco
friendly. Hence, we report an electrochemical sensor for the determination of palladium ions (Pd2+) using
an un-modified screen printed carbon electrode has been developed for the first time, which are characterized
and studied via scanning electron microscope and cyclic voltammetry. Prior to determination of
Pd2+ ions, the operational conditions of un-modified SPCE was optimized using cyclic voltammetry and
showed excellent electro-analytical behavior towards the determination of Pd2+ ions. Electrochemical
determination of Pd2+ ions reveal that the un-modified electrode showed lower detection limit of
1.32 lM with a linear ranging from 3 to 133.35 lM towards the Pd2+ ions concentration via differential
pulse voltammetry. The developed sensor also applied to the successfully determination of trace level
Pd2+ ions in spiked water samples. In addition, the advantage of this type of electrode is simple,
disposable and cost effective in electrochemical sensors.