Document Type

Patent

Patent Number

US Patent 4,412,006

Patent agency

United States Patent and Trademark Office

Publication Date

10-25-1983

Assignee

University of Iowa Research Foundation (Iowa City, IA, US)

Application Number

06/361,586

Date Filed

1982-03-25

Total Pages

5 pages

Abstract

A technique of determination of nitrate-nitrite content of a test sample, without also determining additional nitrogen content. The technique is highly selective and sensitive, to the parts per billion level. The nitrate-nitrite content of a sample is reduced to nitric oxide which is determined via its chemiluminescence reaction with ozone. Nitrite is selectively reduced under mild conditions and the total nitrate-nitrite content is determined by stronger reduction conditions. Specific reducing agents to be used in combination with the chemiluminescence reaction are also provided.

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URL

https://ir.uiowa.edu/patents/34