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The freeze-drying process is usually expressed by a function of variables such as freezing rate, product temperature, gas pressure, solution concentration, and product thickness (or filling volume). Variability in lyophilized bulk products. In addition, variations in heat exchange during lyophilizat
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1. Turn on the power switch, and the indicator light is not on: the external power supply is not connected or the contact is poor, please ask a professional electrician to check the power supply and socket.
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The small rotary evaporator adopts a simple vertical cooler, high product, small footprint, and the height of the vertical condenser is reduced. The lifting operation of the body is very convenient.
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Molecular distillation is a liquid-liquid separation technology that makes the mean free path of vapor molecules larger than the distance between the evaporation surface and the condensation surface in a vacuum state.
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The single-layer glass reactor can provide high temperature reaction (the highest temperature can reach 300 ℃); it can also be vacuumed to do negative pressure reaction.
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The vacuum freeze dryer is an excellent drying method. The dried product can be stored for a long time at room temperature without any additives under the sealed condition.
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There are several heating methods for glass reactorsThe glass reactor has heating methods such as far infrared heating, steam heating, water bath circulation heating, heat conduction oil heating
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First, Method to prevent solvent spray during rotary steaming:1, the temperature should not be too high, and the temperature of the water bath should not exceed 30 degrees Celsius.
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Since the development of laboratory freeze dryers, its types have gradually increased. According to its functions, it can be divided into: ordinary freeze dryer, capping freeze dryer, multi-manifold common freeze dryer
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