Development of a
carbon paste electrode that is screen printed using a carbon/polymer mixture of suitable composition.
Notes: - These electrodes can easily be chemically modified by the incorporation of reagents (electrocatalysts, redox mediators, complexation agents, enzymes, etc.) and by the attachment of micro- or nanoparticles to prepare electrochemical sensors for analytical applications. See for an example using rabbit anti-mouse immunoglobulin in an ELISA assay using a carbon ink electrode.
- Typical composition of a carbon ink expressed as mass fractions is graphite powder \(\pu{60\%}\) and polystyrene \(\pu{40\%}\).
Source:
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 659 (https://doi.org/10.1515/pac-2018-0109)