FA/VB9(Folic Acid/Vitamin B9) ELISA Kit (E-EL-0009)

This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Universal FA/VB9. During the reaction, Universal FA/VB9 in the sample or standard competes with a fixed amount of Universal FA/VB9 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Universal FA/VB9. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Universal FA/VB9 in tested samples can be calculated by comparing the OD of the samples to the standard curve.

Folic acid (Vitamin B9) is an orally active essential nutrient derived from the B vitamin group. Folic acid has an antidepressant like effect. Folic acid may reduce the risk of neural tube defects in newborns. Folic acid can be used to study megaloblastic anemia and macroerythrocytic anemia caused by folic acid deficiency.