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Thyroglobulin (Tg) ELISA RUO

  • Bio-Type Serum
  • Method ELISA
  • CE N
  • # of Tests 96 wells
  • Range Refer to User Manual
  • Sensitivity 0.44 ng/ml
  • Sample Volume 50 uL
  • Incubation Time(s) 120 / 120 / 15 min
  • Storage Conditions 2° C - 8° C
  • SKU:  EIA4126R
  • Category: Thyroid Function
  • $252.00
Approximate Lead Time 1 - 2 Weeks
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They DRG Thyroglobulin Microplate ELISA test is intended to be used for the quantitative determination of Thyroglobulin (Tg) levels in human serum. This product is for Research Use Only; International customers contact your representative to receive information about the CE marked version. The essential reagents required for an immunoenzymometric assay include high affinity and specificity antibodies (enzyme and immobilized), with different and distinct epitope recognition, in excess, and native antigen. In this procedure, the immobilization takes place during the assay at the surface of a microplate well through the interaction of streptavidin coated on the well and exogenously added biotinylated monoclonal Thyroglobulin antibody. When monoclonal biotinylated antibody is mixed with a serum containing the Thyroglobulin antigen, a reaction results between the Thyroglobulin antigen and the antibody, to form an antibody-antigen complex. Simultaneously the biotin attached to the antibody binds to the streptavidin coated on the microwells resulting in immobilization of the complex. After a suitable incubation period, the antibody-antigen bound fraction is separated from unbound antigen by decantation or aspiration. Another antibody (directed at a different epitope) labeled with an enzyme is added. Another interaction occurs to form an enzyme labeled antibody-antigen-biotinylated-antibody complex on the surface of the wells. Excess enzyme is washed off via a wash step. A suitable substrate is added to produce color measurable with the use of a microplate spectrophotometer. The enzyme activity on the well is directly proportional to the native antigen concentration. By utilizing several different serum references of known antigen concentration, a dose response curve can be generated from which the antigen concentration of an unknown can be ascertained.