产地：Pharmacia
货号：17-0300-01
TECHNICAL SPECIFICATIONS
Physical properties of Ficoll＆#8482; PM400
Molecular weight 3 × 105 to 5 × 105
Specific rotation +50 to +65 degrees
Stokes radius 10 nm
Sodium chloride < 1%
Reactivity and stability
The reactivity and stability of Ficoll＆#8482; PM400 are determined by its hydroxyl groups and the glycosidic bonds in the sucrose residues. It is stable in alkaline and neutral solutions. At pH ＆#118alues lower than 3, it is rapidly hydrolyzed, especially at elevated temperatures. In neutral solutions, however, Ficoll＆#8482; PM 400 can be sterilized by autoclaving at 110°C for 30 min without degradation. Strong oxidizing and reducing agents should be avoided.