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Vertical Lab Use Vacuum Freeze Dryer Price

Vertical Lab Use Vacuum Freeze Dryer Price

Freeze Dryer, Vacuum Freeze Dryer, Food Freeze Dryer manufacturer / supplier in China, offering Vertical Lab Use Vacuum Freeze Dryer Price, Biobase Hot Sale PCR Cabinet with CE ISO Certified, Laboratory Extract Arms Exhaust Hood Fume Extractor Arms and so on.


Freeze dryer operation steps:

1. Prepare before lyophilization

Check if the equipment is clean and dry (such as the drying room), whether the vacuum pump is connected to the freezer, turn on the power, and check the tightness of the exhaust port and the freezing tube.

2, sample loading

The sample needs to be pre-cooled to at least -40 ° C and can be carried out in an ultra-low temperature freezer (-70 ° C) or liquid nitrogen (-196 ° C). Open the sealed tube switch, remove the freezer compartment, and place the sample on the partition in the freezer compartment. Close the sealed tube switch.

3, freezing

Turn on the freezer and wait 20 to 30 minutes until the temperature in the freezer compartment is below -40 °C.

4, vacuum

Turn on the vacuum pump switch and wait 10 to 15 minutes until the system pressure is below 100 millitorr.

5, monitoring process

Ensure that system parameters (freezing temperature, vacuum pressure) are within the normal range;

Regularly check the icing in the freezer to determine whether to defrosting;

Observe whether the sample is completely dry. Generally, the drying process takes 24 to 72 hours, depending on the specific sample.

6, shut down the system

Turn off the main switch, connect the exhaust pipe or open the gland switch to release the vacuum.

Turn off the vacuum switch, turn off the freeze switch, and take out the sample.


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