Ozone detecting device

Details Ozone detecting device Ozone detecting device

2011-07-12

2011-07-12

Warden, Jill (Department: 1773)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

C422S087000, C436S135000

Reexamination Certificate

active

07976781

ABSTRACT:
An aqueous solution is formed by dissolving a dye made of alizarin and a humectant made of glycerin, and alkalized by dissolving a base (alkaline substance), thereby preparing a detector solution (101) in which the content of the humectant is about 20 wt %. An impregnated carrier (104) impregnated with the detector solution (101) is formed by dipping for 30 sec a sheet-like carrier (103) made of cellulose filter paper in the detector solution (101) so that the carrier (103) is impregnated with the detector solution (101). The impregnated carrier (104) is pulled up from the detector solution (101), and dried in dry nitrogen by evaporating a solvent such as water contained in the impregnated carrier (104), thereby forming an ozone detecting device (105).

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Baijnath, Y., et al., “A Photometric Method for Ozone Determination Using Alizarin Violet”, J. Environ. Sci. Health Part A, 2004, vol. A 39, No. 9, pp. 2485-2492.
Franklin, et al., “Ozone Measurement in South Carolina Using Passive Sampler”, Journal of the Air & Waste Measurement Association vol. 54, pp. 1312-1320, 2004.
“Operating Instructions for Ozone Monitor”, Part#380010-10, http://www.kandmenvironmental.com/PDFs/ozone.pdf.
Maryadele J. O'Neil et al., “The Merck Index” An encyclopedia of chemicals, drugs, and biologicals, Thirteenth Edition, Published by Merck Research Laboratories Division of Merck & Co., Inc., 2001, p. 48, 246 Alizarin.

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