Tetrahydrofolic Acid (THFA) ELISA Kit for detecting THFA in serum, plasma, tissue homogenates, cell lysates, cell culture supernatants, other biological fluids. Species Reactivity: Universal. Detection Range: 3.12-200ng/ml. Sensitivity: 0.92ng/ml. Format: 96-Well Plate. Assay Type: Competitive inhibition. Assay Time: 3h. Target Synonyms: H4FA, THF, Tetrahydrofolate. Restrictions: For Research Use Only. Not for use in diagnostic procedures.