Analytical element
First Claim
1. An analytical element for detecting a component in a liquid sample, said analytical element containing a light-transmissive and liquid-impermeable support and at least one developing layer having a fibrous structure, said fibrous structure comprising fibers which are loose and randomly entangled with each other in said at least one developing layer, said fibers having a size of from 50 to 325 mesh,said at least one developing layer containing at least one interactive composition capable of reacting with said component to be detected and said interactive composition being bound to the fibers of said developing layer through a compound having a first reactive group for binding to said fibers and a second reactive group for binding to said interactive composition, and a portion of said reactive groups of said compound being bound to at least one of each other and groups in a binder or adjacent layers, thereby increasing the mechanical strength of the developing layer of fibrous structure and greatly enhancing adhesion to the adjacent layers.
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Accused Products
Abstract
There is disclosed an analytical element comprising a light-transmissive and liquid-impermeable support and at least one developing layer of a fibrous structure containing at least one kind of interactive composition reactive with a component in a liquid sample, characterized in that the fiber constituting the developing layer of a fibrous structure and the interactive composition are bonded to each other by a compound having a reactive group. A quantitative analysis of a specific component in a liquid sample can effectively be carried out by using the analytical element according to this invention.
26 Citations
23 Claims
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1. An analytical element for detecting a component in a liquid sample, said analytical element containing a light-transmissive and liquid-impermeable support and at least one developing layer having a fibrous structure, said fibrous structure comprising fibers which are loose and randomly entangled with each other in said at least one developing layer, said fibers having a size of from 50 to 325 mesh,
said at least one developing layer containing at least one interactive composition capable of reacting with said component to be detected and said interactive composition being bound to the fibers of said developing layer through a compound having a first reactive group for binding to said fibers and a second reactive group for binding to said interactive composition, and a portion of said reactive groups of said compound being bound to at least one of each other and groups in a binder or adjacent layers, thereby increasing the mechanical strength of the developing layer of fibrous structure and greatly enhancing adhesion to the adjacent layers.
Specification