This Rat thyroxine (T4) ELISA Kit was designed for the quantitative measurement of Rat thyroxine (T4) protein in serum, plasma, cell culture supernates, tissue homogenates, cell lysates. It is a Competitive ELISA kit, its detection range is 20 ng/mL-320 ng/mL and the sensitivity is 20 ng/mL. One kit contains 96 wells.