Electronic tongue as ozone detector

Details Electronic tongue as ozone detector Electronic tongue as ozone detector

2005-01-11

2005-01-11

Olsen, Kaj K. (Department: 1753)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S406000, C204S431000, C205S785500

Reexamination Certificate

active

06841053

ABSTRACT:
An electronic tongue for the detection of ozone is based on voltammetry, and comprises at least one working electrode and a counter electrode, wherein the working electrode(s) is(are) made of one or more transition metals or Au, or alloys thereof, or alloys thereof with other metals. The data processing is made by multivariate analysis. The sensor can be implemented on-line or in-line in a processing plant where it is desirable to monitor and control ozone levels, e.g. sterilization and purification plants.

REFERENCES:
patent: WO 9913325 (1999-03-01), None
patent: WO 9946201 (1999-09-01), None
patent: WO 0067011 (2000-11-01), None
Smart et al, In Situ Voltammetric Membrane Ozone Electrode, Analytical Chemistry, 51, Dec. 1979, pp. 2315-2319.*
Ohmi, T. et al. “Ozone Decomposition in Ultrapure Water and Continuous Ozone Sterilization for a Semiconductor Ultrapure Water System”. XP 000360633. Journal of the Electrochemical Society No. 11 (1992). pp. 3336-3345.
Sauter, D. et al. “Development of Modular Ozone Sensor System for Application in Practical Use”. Sensors and Actuators B 69 (2000). pp. 1-9.
Winquist, F. et al. “Monitoring of Freshness of Milk by an Electronic Tongue on the Basis of Voltammetry”. XP 000861720. Meas. Sci. Technol. 9 (1998). pp. 1937-1946.
International Search Report as completed on Feb. 20, 2002, by the ISA/EP in connection to International Patent Application No. PCT/SE01/02848.
P. Ivarsson et al.,Discrimination of Tea by Means of a Voltammetric Electronic Tongue and Different Applied Waveforms;Sensors and Actuators B 76 (2001); pp. 449-455; PD; Jun. 1, 2001.
Holmin et al.,Compression of Electonic Tongue Data Based on Voltammetry-A Comparative Study;Sensors and Actuators B 76 (2001); p. 455-464; PD; Jun. 1, 2001.
Winquist, Fredrik et al. “An Electronic Tongue Based on Voltammetry”. Analytica Chimica Acta, vol. 357 (1997). pp. 21-31.

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