Reduction device for nitrate determination

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Fluidized bed

Reexamination Certificate

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C261S094000, C261S100000, C261S103000, C261S123000, C422S068100, C422S202000

Reexamination Certificate

active

10251696

ABSTRACT:
A nitrate reduction device has a cadmium structure forming a plurality of longitudinal channels within a flow chamber, which may be formed by a plurality of wires. The device is used to reduce nitrate to a final nitrite product for analysis.

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Gordon et al, A Suggested Protocol for Continuous Flow Automated Analysis of Seawater Nutrients in the WOCE Hydrographic Program and the Joint Global Ocen Fluxes Study, Nov. 4 1993, OSU Coll. of Oc. Descriptive Chem. Oc. Grp. Tech, p. 32-37.
M. P. Stainton, Simple Efficient Reduction Column for Use in the Automated Determination of Nitrate in Water, Sep. 1974, Analytical Chemistry, vol. 48 No. 11, 1515.
Raymond B. Willis and Claude E. Gentry, Automated Method for Determining Nitrate and Nitrite in Water and Soil Extracts, 1987, Commun. in soil sci. plant anal., 18(6), 625-636.
Raymond B. Willis, Reduction Column for Automated Determination of Nitrate and Nitrite in Water, 1980, Analytical Chemistry, 52, 1377-1379.
Article “Simple, Efficient Reduction Column for Use in the Automated Determination of Nitrate in Water”, by M.P. Stainton, Analytical Chemistry, vol. 46, No. 11, Sep. 1974, p. 1618.
Article “Reduction Column for Automated Determination of Nitrate and Nitrite in Water”, by Raymond B. Willis, Anal. Chem. 1988, 52, 1976, pp. 1376-1377.
Article “Automated Method for determining Nitrate and Nitrite in Water and soil Extracts”, by Raymond B. Willis and Claude E. Gentry, Commun in Soil Sci Plant Anal, 18(6), 625-636 (1987).

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