title: Enzyme-linked immunosorbent assay for secalonic acid D.
abstract: A competitive enzyme-linked immunosorbent assay was developed for the xanthone dimer secalonic acid D. The immunogen and enzyme marker were prepared by direct reaction of secalonic acid D with bovine serum albumin and horseradish peroxidase, respectively. The resultant conjugates were characterized by UV/VIS spectra and thin layer chromatography. The hapten:protein ratios in the conjugates were estimated by difference UV/VIS spectra and by fluorescent techniques. Immunization procedures were conducted utilizing New Zealand rabbits over a period of 12 weeks. The competitive enzyme-linked immunosorbent assay on microtiter plates showed that secalonic acid D was detectable within a range of 250-25 000 ng/assay.
mesh_terms: D000818:Animals; D002855:Chromatography, Thin Layer; D004797:Enzyme-Linked Immunosorbent Assay; D006735:Horseradish Peroxidase; D011817:Rabbits; D012710:Serum Albumin, Bovine; D014966:Xanthenes / Q000032:analysis* / Q000276:immunology; D044004:Xanthones
chemical_list: D014966:Xanthenes; D044004:Xanthones; D012710:Serum Albumin, Bovine; C009218:secalonic acid; D006735:Horseradish Peroxidase