Stabilized enzymic solutions for determining urea

Details Stabilized enzymic solutions for determining urea Stabilized enzymic solutions for determining urea

1981-07-29

1984-08-14

Castel, Benoit

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving urea or urease

435188, 435810, 436 12, 2524081, C12Q 158, C12N 996

Patent

active

044657706

ABSTRACT:
A stabilized urease solution is disclosed comprising water, buffering agents, a bacteriostat, chelating agent, polyhydroxy organic compound and urease. The preferred buffering agents are selected from low conductivity Zwitterionic buffer salts, such as N-2-hydroxyethyl piperazine-N'-2-ethanesulfonic acid, triethanolamine, tris(hydroxymethyl)aminomethane, diethanolamine, aminomethyl propanol and mixtures thereof.

REFERENCES:
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patent: 3876502 (1975-04-01), Monte et al.
patent: 3950226 (1976-04-01), Chang
patent: 4169012 (1979-09-01), Dawson et al.
patent: 4188465 (1980-02-01), Schneider et al.
patent: 4218535 (1980-08-01), Ray
patent: 4282316 (1981-08-01), Modrovich
patent: 4378430 (1983-03-01), Modrovich

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