The lyophilizer in soil freeze-dried common problems

Lyophilizer in soil freeze-dried common problem:

1, the soil freeze-dried equipment selection

the lyophilizer cold trap temperature is low enough, too - 60 degrees, chasing after water power is strong enough. In experiments could choose on cold trap sublimation, so as not to lost;

2, the lyophilization process dust problems

if freeze-dried prone to dust, soil easy to vacuum pump in the vacuum pump, which can lead to damage of the lyophilizer. At this moment need to add a filter paper or wrapped in aluminum foil, insert a few small holes, by the way, as far as possible to cover the samples, so as not to come out.