The effect of repeated activation on screen-printed carbon electrode cards

C. Churinsky, C. Grgicak

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

Screen-printed carbon electrode cards have been recognized as an inexpensive and disposable sensing option with wide application. Despite their disposability, laboratories with high sample throughput may desire repeated use from each card. This study examined the ability of a commercial brand of cards to be reused using cyclic voltammetry (CV) and the reversible redox couple, hexaammine ruthenium. Activation, which improves electrode performance, was shown to affect the shape of the CV curves, the transfer coefficient, and the real electro-active surface area. Repeated activation has a compounding effect on these parameters, which provide insight to the condition and kinetics of the electrode surface. It was determined that screen-printed carbon electrode cards should not be reused with protocols that require electrochemical activation of the working electrode.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalECS Transactions
Volume61
Issue number26
DOIs
StatePublished - 2014
Externally publishedYes
EventSymposium on General Student Poster Session - 225th ECS Meeting - Orlando, United States
Duration: May 11 2014May 15 2014

All Science Journal Classification (ASJC) codes

  • General Engineering

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