{"product_id":"elk-elk1198ms-human-ca19-9-carbohydrate-antigen-19-9-microsample-elisa-kit","title":"Human CA19-9(Carbohydrate Antigen 19-9) Microsample ELISA Kit","description":"\u003cp\u003eHuman CA19-9(Carbohydrate Antigen 19-9) Microsample ELISA Kit is an ELK Biotechnology ELISA kit for research measurement of CA19-9.\u003c\/p\u003e\u003ch3\u003eTest principle\u003c\/h3\u003e\u003cp\u003eThe test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Human CA19-9. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human CA19-9. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Human CA19-9, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. 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 Human CA19-9 in the samples is then determined by comparing the OD of the samples to the standard curve.\u003c\/p\u003e\u003ch3\u003eTarget background\u003c\/h3\u003e\u003cp\u003eAlternative names include sialylated Lewis(a)Antigen; Cancer Antigen 19-9.\u003c\/p\u003e","brand":"ELK Biotechnology","offers":[{"title":"48T","offer_id":56180513243476,"sku":"ABM56183","price":236.41,"currency_code":"GBP","in_stock":true},{"title":"96T","offer_id":56180513276244,"sku":"ABM56182","price":334.17,"currency_code":"GBP","in_stock":true},{"title":"96T*5","offer_id":56180513309012,"sku":"ABM56184","price":1420.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/1782\/2036\/files\/ELK1198MS-b-1.jpg?v=1781983762","url":"https:\/\/www.abmium.com\/products\/elk-elk1198ms-human-ca19-9-carbohydrate-antigen-19-9-microsample-elisa-kit","provider":"ABMIUM","version":"1.0","type":"link"}