Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1983-09-30
1984-10-09
Kaplan, G. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
134 42, 435 12, 435174, 435177, 435817, G01N 2730, C12Q 100, C12Q 158
Patent
active
044760051
ABSTRACT:
Urea electrode comprises a urease-immobilized membrane having added amino groups prepared by dipping an immobilized membrane in an aqueous solution of ethylenediamine or polylysine and an electrode for quantitative determination of ammonium ions. The electrode has a shorter measurement time with a larger electrode output.
REFERENCES:
patent: 3776819 (1973-12-01), Williams
G. G. Guilbault et al., Anal. Chem., vol. 45, No. 2, pp. 417-419, Feb. 1973.
M. Mascini et al., Anal. Chem., vol. 49, No. 6, pp. 795-798, May 1977.
Karasawa Yoshiharu
Katori Akiko
Kobayashi Teruaki
Tokinaga Daizo
Hitachi , Ltd.
Kaplan G. L.
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