Method for determination of nitrate and/or nitrite

Details Method for determination of nitrate and/or nitrite Method for determination of nitrate and/or nitrite

1982-03-25

1983-10-25

Schor, Kenneth M.

Chemistry: analytical and immunological testing

Nitrogen containing

Nitrite or nitrate

436172, 436175, 422 52, G01N 2176

Patent

active

044120060

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.

REFERENCES:
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patent: 3647387 (1972-03-01), Benson et al.
patent: 3730686 (1973-05-01), Breitenbach et al.
patent: 3877875 (1975-04-01), Jones et al.
patent: 3973914 (1976-08-01), Heusden
patent: 3996005 (1976-12-01), Topol
patent: 3996339 (1976-12-01), Falkenburg
patent: 4073866 (1978-02-01), Yamaki et al.
patent: 4221761 (1980-09-01), Bullens et al.
patent: 4236895 (1980-12-01), Stahl

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