Abstract:
Vitamin D binding proteins (DBP), in particular truncated DBP and mutated, truncated DBP, as well as fusion proteins thereof, nucleic acid molecules encoding same, vectors, host cells, and methods, kits and solid supports for determining the total amount of 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3 in a test sample.
Abstract:
Disclosed is a substantially optically pure hapten, useful in an immunoassay for dextropropoxyphene and/or nordextropropoxyphene. The hapten corresponds to a specified structural formula (IX). Also disclosed is an immunogen derived from the hapten as well as an antibody raised in response to an immunogen derived from the hapten. Also disclosed is a fluorescent tracer derived from a substantially optically pure compound corresponding to the hapten, the tracer being useful in an immuoassay for dextropropoxyphene and/or nordextropropoxyphene. Also disclosed is an improved immunoassay for determining dextropropoxyphene and/or nordextropropoxyphene in a biological sample involving a step of contacting the sample with antibodies raised in response to the immunogen. Also disclosed is a fluorescence polarization immunoassay (FPIA) for determining dextropropoxyphene and/or nordextropropoxyphene involving a step of contacting the sample with antibodies raised in response to the immunogen, and/or involving a step of contacting the sample with a fluorescent tracer.
Abstract:
The present invention provides a method for generating an enhanced chemiluminescent signal from an acridinium sulfonamide compound, the method comprising the step of contacting the acridinium sulfonamide compound with a trigger solution in the presence of an enhancer to obtain a chemiluminescent signal which is stronger than would otherwise be generated in the absence of said enhancer. The enhancer comprises at least one member selected from the group consisting of nonionic surfactants, zwitterionic surfactants, and anionic surfactants.
Abstract:
L'invention décrit un haptène sensiblement optiquement pur utile dans une immunoanalyse aux fins de la détection de dextropropoxyphène et/ou nordextropropoxyphène. L'haptène correspond à une formule de structure spécifique (IX). Sont également décrits un immunogène dérivé de l'haptène ainsi qu'un anticorps développé en réponse à un immunogène dérivé de l'haptène. L'invention décrit également un traceur fluorescent dérivé d'un composé sensiblement optiquement pur correspondant à l'haptène, le traceur étant utile dans une immunoanalyse pour la détection de dextropropoxyphène et/ou nordextropropoxyphène. L'invention décrit aussi une immunoanalyse améliorée permettant la détection de dextropropoxyphène et/ou nordextropropoxyphène dans un échantillon biologique, et comportant une étape de mise en contact de l'échantillon avec les anticorps développés en réponse à l'immunogène. L'invention décrit aussi une immunoanalyse de polarisation de fluorescence (FPIA) de détermination du dextropropoxyphène et/ou nordextropropoxyphène comportant une étape de mise en contact de l'échantillon avec des anticorps élevés en réponse à l'immunogène et/ou une étape de mise en contact de l'échantillon avec un traceur fluorescent.
Abstract:
Vitamin D binding proteins (DBP), in particular truncated DBP and mutated, truncated DBP, as well as fusion proteins thereof, nucleic acid molecules encoding same, vectors, host cells, and methods, kits and solid supports for determining the total amount of 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3 in a test sample.
Abstract:
The present invention provides a method for generating an enhanced chemiluminescent signal from an acridinium sulfonamide compound, the method comprising the step of contacting the acridinium sulfonamide compound with a trigger solution in the presence of an enhancer to obtain a chemiluminescent signal which is stronger than would otherwise be generated in the absence of said enhancer. The enhancer comprises at least one member selected from the group consisting of nonionic surfactants, zwitterionic surfactants, and anionic surfactants.