计算溶液所需的质量、体积或浓度。

Recombinant Human SPARC Protein (rp151779)-Protein Bioactivity
Fully biologically active when compared to standard. The ED₅₀ as determined by its ability to inhibit the cell growth of Mv1Lu mink lung epithelial cells is less than 3.0 μg/mL, corresponding to a specific activity of > 333 IU/mg.