Dry liquid analysis element

Details Dry liquid analysis element Dry liquid analysis element

1988-12-19

1992-06-16

Johnston, Jill A.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

422 56, 422 57, 422 58, 435805, 435970, 436 66, 436 71, 436 88, 436170, C12Q 100, G01N 3122

Patent

active

051224518

ABSTRACT:
A dry multilayer analysis element which allows easy permeation of a high molecular weight component or hydrophobic component, which has, in order, at least a water permeable porous reagent layer, a water permeable light reflecting/screen layer, and a water permeable porous spreading layer on a water-impermeable transparent support, a reagent composition capable of producing an optically detectable substance in the presence of a component to be detected being incorporated in at least one of the water-permeable layers including said reagent layer, said light reflecting/screen layer being porous and comprised microcapsules having a core containing light reflective/screen grains and a shell made of a high molecular weight compound, wherein each of said reagent layer, spreading layer, and reflecting/screen layer allows permeation of a high molecular weight or hydrophobic component therethrough.

REFERENCES:
patent: 2800458 (1957-07-01), Green
patent: 4290847 (1981-09-01), Johnson et al.
patent: 4356149 (1982-10-01), Kitajima et al.
patent: 4438067 (1984-03-01), Siddiqi
patent: 4732849 (1988-03-01), Seshimoto et al.
Chemical Abstracts, vol. 107 (1987) p. 304; 107:214482k.
Chemical Abstracts, vol. 104 (1986) p. 110; 104:111771n.
63-Pharmaceuticals, vol. 104 (1986) p. 365; 104:56406v.

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