Detection Principle:

This kit uses double antibody sandwich ELISA technology. The specific anti human TF capture antibody was pre coated on a high affinity microplate. Add the standard and the sample to be tested into the wells of the microplate plate in turn, shake well and mix well, and then place it at room temperature for 2 hours of incubation process; Binding to solid-phase antibodies. After thorough washing to remove free and unbound components, HRP enzyme labeled detection antibody was added and incubated for 1 hour. The unbound detection antibody was removed by washing. TMB chromogenic substrate was added and incubated in the dark at room temperature for color development. The depth of color response and tf  There is a positive correlation between the concentration of. Add stop solution to stop the reaction, and use a microplate reader to measure the absorbance value at 450 nm detection wavelength (correction wavelength 570-630 nm).

Detection Type: Double antibody sandwich method

Form: pre coated 96 well plate

Test Sample Type: cell supernatant, serum, plasma

Loading Amount: 100 μ L

Kit Components: A copy of pre coated 96 well plate, standard, HRP enzyme labeled human TF detection antibody, detection buffer, TMB chromogenic substrate, washing solution, termination solution, plate sealing membrane and instructions.

Sensitivity: 2.82 pg/ml

Detection Range: 0.94-60ng/ml

Recovery Range: 90-118%

Storage Method: 2-8 ℃

Standard Curve:

Background:

Transferrin (TF)It is a secreted protein, belonging to the transferrin family, which is expressed by the liver and secreted into the plasma. TF has a molecular weight of about 80 kDa and contains two specific high affinity fe3+ binding sites. TFs are iron binding glycoproteins present in plasma, which can regulate the level of free iron in biological fluids. Its main role is to transport iron from duodenal absorption center and leukocyte macrophages to other tissues.

TF is associated with the innate immune system. In the inflammatory state, its level will decrease. We often find that plasma TF levels are increased in patients with iron deficiency anemia. While plasma TF levels are generally reduced in patients with iron overload and protein malnutrition. Recently, it has been found that TF and its receptors can reduce tumor cells when Tf receptors attract antibodies. TF is an acute phase protein, so its level is decreased in inflammation, cancer and some diseases.