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仪器設备对实驗工作的效率与成敗有着密切的关系。我們历年来曾制成了一些仪器,其中有些是自己創制的,有些是参考其他形式加以改进制成的。它們大都具有制作簡易,使用便利,效果良好的特点。所以向大家.作一簡单的介紹。 1.快速蒸发器:在实驗室中有时常有大量的溶剂需要蒸发,一般常用的蒸发器效率不高,蒸发所需的时間較长,对某些遇热不太稳定的物质就不十分合适。因此参照有关资料自己吹制了一套薄膜式蒸发器;它的形式与裝置如图1所示:其中A为貯料器,大小視原料多少而定,B为蒸汽加热套,是一长120厘米、直
The efficiency of instrument and equipment for experimental work is closely related to its success or failure. We have made some instruments over the years, some of which were created by ourselves and others made by reference to other forms of improvement. Most of them are easy to make, easy to use and good effect. So to everyone. Make a brief introduction. 1. Rapid evaporator: In the laboratory often have a lot of solvent evaporation, commonly used evaporator is not efficient, longer evaporation time, for some of the material is not very stable when heated Suitable. So with reference to the information themselves blown a thin-film evaporator; its form and device shown in Figure 1: Where A is the storage, depending on the size of raw materials, B is a steam heating jacket, is a long 120 Cm, straight