Polyaniline-modified pH electrodes

Authors

  • Ma. Leonora Clerigo Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
  • Richard J. C. Doria Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
  • Jul Kristian R. Manoop Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
  • Maricon R. Amada Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
  • Elmer-Rico E. Mojica Institute of Chemistry, University of the Philippines Los Baños

Abstract

Polyaniline-modified pencil pH electrodes were produced with the use of an ordinary pencil lead. Polyaniline was coated on the pencil lead surface through the electrochemical method polymerization. The potential relationship of the electrode with pH was considered using buffers of different pH values (acidic, neutral and basic). The potential measurements obtained were due to the surface charge density brought by the protonation and deprotonation in the acidic and basic mediums, respectively. Potential curves were then obtained. The polyaniline-modified pencil pH electrode offers the advantage of durability and lower cost compared to that of commercially available pH electrode.

SPP 2005 Proceedings Cover

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Published

2005-10-26

Issue

2005: Proceedings of the 23rd Samahang Pisika ng Pilipinas Physics Congress

Section

Poster Session PB

License

By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Polyaniline-modified pH electrodes”, Proc. SPP, vol. 23, no. 1, p. SPP-2005-PB-49, Oct. 2005, Accessed: Mar. 30, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2005-PB-49