Abstract: The invention concerns a process for the immunological determination of a specific antibody in a fluid sample. The process involves incubating the fluid sample in the presence of a solid phase with two antigens directed against the antibody whose presence is to be determined; the first antigen carries at least one marker group, while the second is either (a) bonded to the solid phase or (b) present in a form in which it can bond with the solid phase, and betrays the presence of the antibody being sought by showing the presence of the marker group in the solid phase and/or in the fluid phase. The proposed process is characterised by the fact that at least one of the two antigens has several epitopic regions which react with the antibody to be determined.

Abstract: The invention concerns a method for the immunological determination of a specific antibody in a sample liquid in which the sample liquid is incubated in the presence of a solid phase with two antigens directed against the antibody to be determined of which the first antigen carries at least one marker group and the second antigen is (a) bound to the solid phase or (b) is present in a form capable of binding to the solid phase and the antibody to be determined is detected by determining the marker group in the solid phase or/and in the liquid phase characterized in that at least one of the two antigens contains several epitope regions which react with the antibody to be determined.

Abstract: The invention concerns a method for the immunological determination of a specific antibody in a sample liquid in which the sample liquid is incubated in the presence of a solid phase with two antigens directed against the antibody to be determined of which the first antigen carries at least one marker group and the second antigen is (a) bound to the solid phase or (b) is present in a form capable of binding to the solid phase and the antibody to be determined is detected by determining the marker group in the solid phase or/and in the liquid phase characterized in that at least one of the two antigens contains several epitope regions which react with the antibody to be determined.

Abstract: The invention concerns a method for the immunological determination of a specific antibody in a sample liquid in which the sample liquid is incubated in the presence of a solid phase with two antigens directed against the antibody to be determined of which the first antigen carries at least one marker group and the second antigen is (a) bound to the solid phase or (b) is present in a form capable of binding to the solid phase and the antibody to be determined is detected by determining the marker group in the solid phase or/and in the liquid phase characterized in that at least one of the two antigens contains several epitope regions which react with the antibody to be determined.

Abstract: Method for the specific detection of nucleic acids in a sample by reaction of the sample with one or several labelled nucleotide triphosphates and one or several enzymes which catalyse the production of a labelled nucleic acid B which contains this nucleotide, non-thermally denaturation, reacting the sample with a nucleic acid probe C which is sufficiently complementary to nucleic acid B and which contains at least one immobilizable group, if desired, contacting the nucleic acid hybrid D formed with a solid phase which recognizes and binds the immobilizable group, removing the liquid from the solid phase and determining the label on the solid phase as a measure for the presence of the nucleic acid.

Abstract: The present invention provides a process for the determination of total bilirubin in samples of body fluids. The method comprises the incubation of a sample of body fluid with both subtilisin which completely liberates bilirubin from its albumin and with bilirubin oxidase as a measurement of total bilirubin content in said body fluid sample.