Integral analytical element

Details Integral analytical element Integral analytical element

1976-04-26

1977-09-27

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

G01N 3122

Patent

active

040508986

ABSTRACT:
Analytical element for the detection of an agent under analysis, termed analyte, dissolved in an aqueous, proteinaceous liquid. The element has at least two superposed layers, the layers including a spreading layer and a reagent layer. The element can include a support material which is preferably radiation transmissive. To normalize transport of the analyte in and through the spreading layer, the spreading layer contains an effective amount of a surfactant, such as a non-ionic surfactant. Preferably, the amount of surfactant is between about 1% and about 15% by weight of solid contents in the spreading layer.

REFERENCES:
patent: 3652225 (1972-03-01), Coffin, Jr. et al.
patent: 3875014 (1975-04-01), Forgione
patent: 3917452 (1975-11-01), Rittersdorf et al.
patent: 3929580 (1975-12-01), Forgione et al.
Research Disclosure, Oct. 1974, pp. 51-56.

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