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1. the time in -80c, depends on the cryo-vial and temperature decreasing rate. if the temperature decreasing at -1C per minute, eg, Bicell. it would be more than enough to keep cells in -80 for 4hours. To cryopreserve cells for a short time,1-3 mon, you can just leave it in -80c
7 m3 e2 R f7 t2. For longterm preservation, it is better to transfer your cells into LN2! c7 k! F! s$ q
3. Overnight in -80, it is just for the work convinience.
1 ^" ^6 K- H' m% N1 g
% G: |! \ A; ^2 C7 W8 Q: G# M% v
5 ~ ~4 k9 p8 O. E1 I过夜是为了好安排工作,-80 放4小时就可以 |
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