Integral multi-layer analysis element

Details Integral multi-layer analysis element Integral multi-layer analysis element

1988-04-18

1991-04-16

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 57, 436113, 436170, G01N 3122

Patent

active

050080784

ABSTRACT:
A multi-layer analysis element including an endogenous ammonia trapping layer, an ammonia producing layer containing a composition capable of reacting with an ammonia producing substance to produce gaseous ammonia, and at least one layer essentially incapable of trapping ammonia and essentially incapable of producing ammonia, and capable of preventing the diffusion of ammonia, disposed between the endogenous ammonia trapping layer and the ammonia producing layer. The unified multi-layer analysis element according to the invention is useful for the quantitative analysis of ammonia producing substances in aqueous biological food samples, with a high degree of sensitivity and accuracy, using a simple procedure.

REFERENCES:
patent: Re30267 (1980-05-01), Bruschi
patent: 3901657 (1975-08-01), Lightfoot
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4166093 (1979-08-01), Smith-Lewis et al.
patent: 4548906 (1985-10-01), Sekikawa et al.
patent: 4719085 (1988-01-01), Jacobs
European Search Report.

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