FIELD: medicine.
SUBSTANCE: glass reservoirs with flat bottom, containing biopreparations, are placed into tray with low-temperature medium. Low-temperature layer in tray is, as minimum, twice as thick as layer of frozen biopreparation in reservoir. As medium water solution of calcium chloride is used. Freezing and further sublimation drying are carried out.
EFFECT: reduction of time for process carrying out and obtaining product with developed capillary-porous structure.
2 tbl, 4 ex, 1 dwg
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