Determination of nitrate in water and catalyst therein

Details Determination of nitrate in water and catalyst therein Determination of nitrate in water and catalyst therein

1983-08-26

1985-07-02

Turk, Arnold

Chemistry: analytical and immunological testing

Nitrogen containing

Nitrite or nitrate

436164, 436175, 502331, G01N 2175, G01N 3318

Patent

active

045268703

ABSTRACT:
A method and catalyst for the determination of nitrate in water which has been obtained by reduction of a solution of a salt of a transition metal or group VIII of the periodic system and a transition metal salt of the copper group in the presence of an acid. The nitrate determination is effected by determining the nitrate extinction of a sample of water as compared with a blank sample in the UV region at 210 nm, a part of the sample of water whose nitrate has been reduced in the presence of hydrogen with the use of the catalyst of the invention being employed as blank sample.

REFERENCES:
patent: 3910770 (1975-10-01), Kobylinksi et al.
patent: 4021374 (1977-05-01), Petro et al.
patent: 4083809 (1978-04-01), De Thomas et al.
patent: 4218518 (1980-08-01), Vaseen
Lambert et al., Analytical Chemistry, vol. 43, No. 7, Jun. 1971, pp. 955-957.
Armstrong, Analytical Chemistry, vol. 35, No. 9, Aug. 1963, pp. 1292-1294.
Perry et al. (editors), Chemical Engineers' Handbook, 4th edition, McGraw-Hill, Inc., 1963, pp. 18-25 and 18-26.

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