title: A new enzyme-linked fluorescence assay (ELFA) for use with peroxidase-antibody conjugates: a comparison with ELISA for the quantitation of IgM antibodies to hepatitis B core antigen.
abstract: A new enzyme-linked fluorescence assay (ELFA) suitable for use with peroxidase-antibody conjugates is described. The substrate for the assay is p-hydroxyphenylacetic acid, the fluorescent product of which is stable and unaffected by light. The assay compared favourably with a standard ELISA for the quantitation of IgM antibodies to hepatitis B core antigen.
mesh_terms: D004797:Enzyme-Linked Immunosorbent Assay; D005453:Fluorescence; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006512:Hepatitis B Core Antigens / Q000276:immunology*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007124:Immunoenzyme Techniques; D007075:Immunoglobulin M / Q000032:analysis*; D010648:Phenylacetates
chemical_list: D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens; D007075:Immunoglobulin M; D010648:Phenylacetates; C008070:4-hydroxyphenylacetic acid