计算溶液所需的质量、体积或浓度。

Recombinant Human CD31/PECAM-1 Protein (rp143954) - Protein Bioactivity
Measured by the ability of the immobilized protein to support the adhesion of Jurkat human acute T cell leukemia cells in the presence of 10 μg/mL PHA. The ED₅₀ value was lower than 5 ng/mL.