Stabilized enzymic solutions for determining urea

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

1979-09-11

1981-08-04

Castel, Benoit

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving urea or urease

435188, 435810, C12Q 158

Patent

active

042823161

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:
patent: 3413198 (1968-11-01), Deutsch
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.

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