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14 February 2017
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Teaching is concentrated in the faculties and schools, and the departments deal with research, which is also conducted by institutes and chairs, at the same time responsible for knowledge promotion.
It lyophilisation it is the process of sublimation of the water of a sample (step of liquid in gas) from the freezing of a sample and a posterior drying to the emptiness.
In order to carry out one analyses, put in touch with the responsible for the UEA.
It be necessary to inform of the toxicity and precautions of storage of the sample.
The LyoQuest-55 is a freeze drier compact and of easy installation.
Have a capacity of 8 Kg of condenser (5 Kg/24 h), with a final temperature of -55 ºC.
The team is complemented with a bomb of emptiness of double stage placed in the exterior.
The foundation of the team of lyophilisation bases on maintaining temperature to casualty (-50ºC) a sample previously frozen while the emptiness is applied in a chamber. In this way the sublimation is obtained from the water contained in this sample. The process finishes when the internal temperature of the sample and of the chamber they become equal (between 24-48hr depending on the thickness of sample). How much more surface has the sample to freeze-dry and less amount of floating, faster it will be the process.
The objective of the lyophilisation is to dehydrate samples without altering its composition. The freeze-dried samples can be kept in fresh and dry places during a long period of time avoiding the degradation of these.
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