Martin Christ is the only professional company in the world that has a complete product line of laboratory, pilot and industrial production freeze dryers. It has nearly 60 years of experience in product design and manufacturing. With the cooperation of industrial users, Christ's technology and equipment have gradually become synonymous with high, sophisticated and sharp in this field. The Alpha 1-2 LD plus freeze dryer is a conventional laboratory freeze-drying machine launched by Martin Christ, which can meet the needs of most laboratory routine freeze-drying biological samples. In 2012, Beijing Wuzhou Oriental Technology Development Company became the exclusive national agent of Alpha 1-2 LD plus.
Drying is one of the methods for storing items. Conventional methods such as sun drying, drying, and vacuum drying are carried out at temperatures above 0 ° C or higher. The preferred method for storing biological samples is vacuum freeze-drying. Referred to as freeze drying, it is also called sublimation drying.
Under certain pressure and temperature, water can coexist in solid, liquid and gas states. This point is called the triple point. Freeze-drying technology usually freezes a substance containing a lot of water in advance to a solid, and then sublimates water vapor directly from the solid under a certain vacuum, while the substance itself is left in the ice shelf when it is frozen, so it is It will not destroy the original chemical structure and morphology of the solute, and the biologically active material can still restore the conformation and biological function before lyophilization after re-dissolution. Therefore, lyophilization is the safest drying method with the least influence on the properties of the dried substances. It has the following advantages: 1. It is suitable for many heat-sensitive substances, such as proteins and microorganisms, which will not be denatured or lose biological vitality; 2. Some volatile components in the substance have very little loss, suitable for some chemical products, medicines and food drying 3. The growth of microorganisms and the action of enzymes cannot be carried out, so they can maintain their original properties; 4. Because they are dried in a frozen state, the volume is almost unchanged, the original structure is maintained, and the concentration phenomenon will not occur; 5 1. The dried material is loose and porous, in the shape of a sponge. After adding water, it dissolves quickly and completely, and almost immediately restores its original character; 6. Because the drying is performed under vacuum, there is very little oxygen, so some easily oxidized substances are protected; 7 , Can remove more than 95-99% of water, so that the product can be stored for a long time after drying without deterioration.
At present, freeze-drying technology is widely used in scientific research and production in the pharmaceutical and food industries, such as biological products, biochemical drugs; microorganisms and algae; there are also some drying operations for vulnerable and oxidizable substances, such as biological specimens and biological tissue Historical archives, dehumidification preservation of cultural relics, dehumidification of microporous parts, etc.
Performance parameters freeze-drying capacity up to 2.5kg
Cold trap temperature -55 ℃
Cold trap efficiency max. 2kg / 24h
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