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Authors: Marcos F. S. Teixeira 1 ; Alex S. Lima 1 ; Patricia Monteiro Seraphim 1 and Nerilso Bocchi 2

Affiliations: 1 Faculty of Science and Technology, University of State of Sao Paulo (UNESP), Brazil ; 2 Federal University of São Carlos, Brazil

Keyword(s): Sensor for potassium ions, hollandite, voltammetry.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Instruments and Devices ; Biomedical Sensors

Abstract: Hollandite-type manganese oxides are nanofibrous crystals with sub-nanometer open tunnels that provide a unique property for sensing applications. Sensor based on hollandite-type manganese oxide was investigated for amperometric detection of potassium. With an operating potential of +0.63 V versus SCE, potassium ions produce oxidation currents at the sensor, which can be exploited for quantitative determinations. The amperometric signals are linearly proportional to potassium ions concentration in the range 2.7 × 10−4 to 9.1 ×10−4 mol l−1 with a correlation coefficient of 0.9990. The construction and renewal are simple and inexpensive.

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Paper citation in several formats:
F. S. Teixeira, M.; S. Lima, A.; Monteiro Seraphim, P. and Bocchi, N. (2008). DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS. In Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 1: BIODEVICES; ISBN 978-989-8111- 17-3; ISSN 2184-4305, SciTePress, pages 198-201. DOI: 10.5220/0001054001980201

@conference{biodevices08,
author={Marcos {F. S. Teixeira}. and Alex {S. Lima}. and Patricia {Monteiro Seraphim}. and Nerilso Bocchi.},
title={DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS},
booktitle={Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 1: BIODEVICES},
year={2008},
pages={198-201},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001054001980201},
isbn={978-989-8111- 17-3},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the First International Conference on Biomedical Electronics and Devices (BIOSTEC 2008) - Volume 1: BIODEVICES
TI - DEVELOPMENT OF AN AMPEROMETRIC SENSOR FOR POTASSIUM IONS
SN - 978-989-8111- 17-3
IS - 2184-4305
AU - F. S. Teixeira, M.
AU - S. Lima, A.
AU - Monteiro Seraphim, P.
AU - Bocchi, N.
PY - 2008
SP - 198
EP - 201
DO - 10.5220/0001054001980201
PB - SciTePress

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