{"product_id":"human-f-testo-free-testoterone-elisa-kit-5202026","title":"Human F-TESTO (Free Testoterone) ELISA Kit","description":"\u003cp\u003eThe Human F-TESTO (Free Testoterone) ELISA Kit measures F-TESTO in Human Serum, Plasma, Cell Culture Supernatant, Cell or Tissue Lysate. This kit is based on Competitive-ELISA detection method and takes 2h assay time. The microplate provided in this kit has been precoated with F-TESTO. F-TESTO in the sample or standard competes with a fixed amount of biotin-labeled F-TESTO for sites on a pre-coated antibody specific to F-TESTO. Free components are washed off. After adding HRP-Streptavidin Conjugate (SABC), biotin specifically binds with streptavidin to form immune complexes. Wash off unbound conjugate. Add TMB substrate solution. Then, TMB was catalyzed by HRP to produce a blue color product that turned yellow after adding a stop solution. Read the O.D. absorbance at 450nm in a microplate reader. Compare OD450 value of sample with the standard curve through curve fitting software to determine the concentration of F-TESTO in the sample. The concentration of the target substance is inversely proportional to the OD450 value.\u003c\/p\u003e","brand":"Fine Test","offers":[{"title":"96 wells","offer_id":49021647061220,"sku":"EH3092","price":455.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/6238\/8964\/files\/EH3092_cdab3ea2-abc8-4c33-903b-881cd006c44e.jpg?v=1779896423","url":"https:\/\/www.ardentbio.com\/products\/human-f-testo-free-testoterone-elisa-kit-5202026","provider":"Ardent Bio LLC","version":"1.0","type":"link"}