Designing a water-quality monitor with ion selective electrodes

Author

Buehler, Martin G. ; Kounaves, Samuel P. ; Martin, Dennis P. ; West, Steve J. ; Kuhlman, Gregory M.

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

1

fYear

2001

fDate

2001

Abstract

This effort is directed at developing a sensor for evaluating water quality. A set of nine ion selective electrodes (ISEs) are being fabricated on a 4.5-cm diameter ceramic substrate. This paper discusses the design and fabrication of the deposition chamber and the ceramic substrates that form the basis for the ISEs. The chamber, substrate and electronics design was validated to assure that the multiplexing electronics functions, the ceramic substrate mounted is stress-free, and the deposition chamber is water tight. Results from the electrolysis of a dilute nitric acid solution are presented to further validate the design concept

Keywords

ceramics; electrochemical sensors; electrodes; electrolysis; membranes; space research; substrates; water; 4.5 cm; 4.5-cm diameter; Ca²⁺; Cl^-; H₂O; HNO₃-H₂O; K⁺; Mg²⁺; NASA; ceramic substrate; ceramic substrates; deposition chamber; design; dilute nitric acid solution; electrolysis; fabrication; ion selective electrodes; multiplexing electronics; water-quality monitor; Biomembranes; Ceramics; Dielectric substrates; Electrodes; Laboratories; Monitoring; Pins; Polymers; Propulsion; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 2001, IEEE Proceedings.

Conference_Location

Big Sky, MT

Print_ISBN

0-7803-6599-2

Type

conf

DOI

10.1109/AERO.2001.931724

Filename

931724