Overview
LICHEN LC-10N-80C Benchtop freeze dryer uses the sublimation principle for drying, which quickly freezes the dried substance at low temperature, and directly sublimates and escapes the frozen water molecules in a vacuum environment. This technology makes the substance always in a frozen state before drying, and the ice crystals are evenly distributed, avoiding the side effects of condensation, foam, oxidation, etc. Finally, the drying product with porous sponge shape, basically unchanged volume and easy to rehydrate can effectively prevent the physical and biological denaturation of the substance.
Features
1. Equipped with 7-inch color LCD Touchscreen, using PID control, can clearly display temperature, Vacuum Level, and support Linear dispersion browsing.
2. The drying chamber is covered with colorless transparent plexiglass, which is convenient for observing the freeze-drying process throughout the process.
3. Equipped with anti-return oil vacuum pump, the connection with the host adopts international standard KF quick connector, and the connection is simple and reliable.
4. Using the original imported Compressor from Europe, with mixed environmentally friendly refrigerant, the refrigeration is rapid and the freezing temperature is low.
5. The cold trap has a pre-freezing function, which can be used instead of the low temperature refrigerator.
6. Built-in high-efficiency heat exchanger, effectively reducing the cold trap temperature and strong water capture capacity.
7. Equipped with a nitrogen gas charging valve, it can be filled with nitrogen or inert gas after drying to maintain the sample state.
Principle
Vacuum freeze drying is based on the principle of sublimation. First, the dried substance is rapidly frozen at low temperature, so that the water in it forms solid ice crystals. Subsequently, in a vacuum environment that maintains a low-temperature freezing state, the ice crystals are directly sublimated into water vapor without going through the liquid state, and the water vapor is captured by the cold trap, thereby realizing the dehydrate drying of the substance. The whole process avoids the appearance of liquid water, thus protecting the structure and activity of the substance.
Applications
Biological products, medicine, food, chemical industry, materials research, agriculture, scientific research and experiment
