The Iron content was estimated by ICP-OES and was found to be less than 40 ppm.

Lyophilized Bovine Apo Transferrin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Bovine Apo Transferrin should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent freeze-thaw cycles.