For reimplantation surgery, the detached digit or limb is best preserved in (AIMS Nov 2010)
The amputated part is cleaned with a sterile isotonic solution, wrapped in moist sterile gauze. It should be then sealed in waterproof bag. This bag are now placed in container of ice and sent to the reimplantation center.
Note- Permissible ischemic time is maximum 8 hours for proximal amputation where as 12 hours for the digits.