A pH Sensor Based on a Stainless Steel Electrode Electrodeposited with Iridium Oxide

Autor/inn/en	Martinez, C. C. M.; Madrid, R. E.; Felice, C. J.
Titel	A pH Sensor Based on a Stainless Steel Electrode Electrodeposited with Iridium Oxide
Quelle	In: IEEE Transactions on Education, 52 (2009) 1, S.133-136 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0018-9359
DOI	10.1109/TE.2008.921451
Schlagwörter	Biomedicine; Biochemistry; Science Process Skills; Cost Effectiveness + Suchen Sie Ihr Suchwort? Biomedizin; Biochemie; Kosten-Nutzen-Analyse; Kosten-Nutzen-Denken
Abstract	A simple procedure to make an iridium oxide (IrO[subscript 2]) electrodeposited pH sensor, that can be used in a chemical, biomedical, or materials laboratory, is presented here. Some exercises, based on this sensor, that can be used to teach important concepts in the field of biomedical, biochemical, tissue, or materials engineering, are also presented. This novel procedure is based on the electrodeposition of IrO[subscript 2] on a stainless steel electrode, which uses a similar mechanism to an ion selective electrode (ISE) and senses changes in pH. The simplicity and cost effectiveness of this method facilitates the teaching of the concept of half-cell potential and the basics of sensors. This novel sensor has also been shown to outperform the classical glass pH-sensor. In this new methodology, students learn to build the electrode, to calibrate it, and to measure its sensitivity, repeatability, and time-response. (Contains 2 tables and 5 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10