Method of assay

G - Physics – 01 – N

Patent

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Details

G01N 33/543 (2006.01) G01N 15/14 (2006.01) G01N 33/546 (2006.01)

Patent

CA 2179826

A binary assay method capable of providing wide dynamic range, a high degree of precision and rapid processing times in which analyte is reacted successively with two independently determinable forms of solid-supported binding partner and also with a labelled ligand having affinity for the analyte or binding partner, the analyte concentration being determined from signals deriving from the resulting two forms of analyte-binding partner-labelled ligand systems by reference to a double standard calibration curve. A kit for use in the method is also disclosed.

L'invention se rapporte à une méthode de titrage binaire permettant d'obtenir un rayon d'action dynamique étendu, un haut niveau de précision et des temps de traitement courts, et dans lequel un analyte est successivement mis en réaction avec deux formes indépendamment déterminables de partenaires de liaison placés en support sur un solide ainsi qu'avec un ligand marqué ayant une affinité pour lanalyte ou pour le partenaire de liaison, la concentration de l'analyte étant déterminée à partir de signaux émanant des deux formes résultantes des systèmes analyte-partenaire de liaison-ligand marqué, par référence à une double courbe d'étalonnage standard. L'invention se rapporte également à un kit utilisé dans ce procédé.

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