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Proceedings Paper

Characteristics Of Microfabricated Ion Selective Electrodes
Author(s): J. Van der Spiegel; I. R. Lauks; H. J. Wieck; N. Smit; S. Cozzette
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Paper Abstract

The paper discusses the fabrication and the test results of a blood urea nitrogen sensor (BUN) and a chloride sensor. The BUN sensor consists of a potentiometric ammonium ion sensor covered by a polymer membrane that contains the immobilized enzyme urease. The chloride sensor is a liquid membrane type electrode. Both electrodes are batch fabricated. The sensors are part of a multispecies sensor chip. The results of the sensor in aqueous solutions and blood will be given. Good uniformity and reproducibility is obtained. The BUN sensor has a linear range of 1 to 20 mM urea and a coefficient of variation of 3% in normal blood.

Paper Details

Date Published: 8 August 1989
PDF: 6 pages
Proc. SPIE 1068, Catheter-Based Sensing and Imaging Technology, (8 August 1989); doi: 10.1117/12.952155
Show Author Affiliations
J. Van der Spiegel, University of Pennsylvania (United States)
I. R. Lauks, I-STAT Corporation (United States)
H. J. Wieck, I-STAT Corporation (United States)
N. Smit, I-STAT Corporation (United States)
S. Cozzette, I-STAT Corporation (United States)


Published in SPIE Proceedings Vol. 1068:
Catheter-Based Sensing and Imaging Technology
Alan I. West, Editor(s)

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