{"product_id":"e1s-estrone-sulfate-elisa-kit-6072026","title":"E1S (Estrone Sulfate) ELISA Kit","description":"\u003cp\u003eThe E1S (Estrone Sulfate) ELISA immunoassay kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with E1S. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to E1S. Next,Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of E1S in the samples is then determined by comparing the OD of the samples to the standard curve.\u003c\/p\u003e","brand":"Reed Biotech","offers":[{"title":"96 wells","offer_id":49120039207140,"sku":"RE10114","price":450.0,"currency_code":"USD","in_stock":true},{"title":"48 wells","offer_id":49120039239908,"sku":"RE10114-48w","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/6238\/8964\/files\/ReedBiotechELISA.jpg?v=1765812936","url":"https:\/\/www.ardentbio.com\/products\/e1s-estrone-sulfate-elisa-kit-6072026","provider":"Ardent Bio LLC","version":"1.0","type":"link"}