Anodic stripping voltammetric determination of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode using a carbon pseudo-reference electrode

Honeychurch, Kevin C; Rymansaib, Zuhayr; Iravani, Pejman

Abstract

© 2018 Elsevier B.V. The application of a novel fully 3-D printed carbon nanofiber–graphite–polystyrene electrode has been investigated for the trace determination of Zn2+ by differential pulse anodic stripping voltammetry. The possibility of utilising a carbon pseudo-reference electrode was found to be successful. The effect of accumulation potential and time were investigated and optimised. Using an accumulation potential of −2.9 V (vs. C) and an accumulation time of 75 s a single sharp anodic stripping peak was recorded exhibiting a linear response from 12.7 μg/L to 450 μg/L. The theoretical detection limit (3σ) was calculated as 8.6 μg/L. Using the optimised conditions a mean recovery of 97.8%, (%CV = 2.0%, n = 5) for a tap water sample fortified at 0.990 μg/mL was obtained indicating the method holds promise for the determination of Zn2+ in such samples.

Citation

Honeychurch, K. C., Rymansaib, Z., & Iravani, P. (2018). Anodic stripping voltammetric determination of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode using a carbon pseudo-reference electrode. Sensors and Actuators B: Chemical, 267, 476-482. https://doi.org/10.1016/j.snb.2018.04.054

• Journal Article Type: Article
• Acceptance Date: Apr 11, 2018
• Online Publication Date: Apr 12, 2018
• Publication Date: Aug 15, 2018
• Journal: Sensors and Actuators, B: Chemical
• Print ISSN: 0925-4005
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 267
• Pages: 476-482
• DOI: https://doi.org/10.1016/j.snb.2018.04.054
• Keywords: 3D printed, Carbon Nanofiber, electrode, stripping voltammetry, heavy metals, voltammetry
• Public URL: https://uwe-repository.worktribe.com/output/862941
• Publisher URL: https://doi.org/10.1016/j.snb.2018.04.054
• Additional Information: Additional Information : This is the author’s accepted manuscript. The final published version is available here: https://doi.org/10.1016/j.snb.2018.04.054