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在药品检验中,进行过滤,蒸发、干燥等步骤时,常需应用减压装置。若对负压的要求不高,可自己动手制作简易的减压装置。制作材料易得、方法简单,使用也方便。经试验,效果还满意。1.材料:弯形(或直形)点滴管一支,直形点滴管尖端可在酒精灯上略烧弯。2.T形(或Y形)联接管一支,内径比点滴管的外径稍大。3.口径大小适中的橡胶管数尺。制作及使用方法如图1或
In drug testing, filtration, evaporation, drying and other steps, often need to use decompression device. If the negative pressure is not high, you can create a simple pressure relief device. Easy to produce materials, the method is simple, easy to use. After testing, the results are still satisfactory. 1. Material: a curved (or straight) pipette, a straight pipette tip can slightly bend the alcohol lamp. 2. T-shaped (or Y-shaped) a connecting pipe, the inner diameter slightly larger than the outer diameter of the pipette. 3. Caliber moderate size rubber tube ruler. Production and use of the method shown in Figure 1 or