Test composition and device for the determination of cyanuric ac

Details Test composition and device for the determination of cyanuric ac Test composition and device for the determination of cyanuric ac

1987-12-28

1989-08-08

Richman, Barry S.

Chemistry: analytical and immunological testing

Nitrogen containing

210169, 422 57, G01N 3318, E04H 316, E04H 320

Patent

active

048552399

ABSTRACT:
A colorimetric test reagent composition is presented for determining the amount of cyanuric acid in water. Cyanuric acid is added to outdoor swimming pool water to stabilize the chlorine added as a sanitizer. Basically the test composition utilizes melamine and an indicator material which responds to a change in pH of the test environment caused by the action of cynanuric acid on the reagent composition. Preferably the test composition is incorporated in a porous matrix which results in a convenient solid state test device.

REFERENCES:
patent: 4039284 (1977-08-01), Mancini
patent: 4162897 (1979-07-01), Capuano
patent: 4613575 (1986-09-01), Westrup et al.
patent: 4670218 (1987-06-01), Gantzer et al.
patent: 4673513 (1987-06-01), Powell
The Merck Index, Tenth edition 1983.
Downes et al., Water Res 18(3), 1984, pp. 277-280.

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