With the methods like dispersing KF on inert carriers, dispersing by slow distillation of its solution in polar organic solvent, freeze-drying and spry-drying, etc. are feasible .
指出KF氟化剂主要着重于提高比表面积,通过附载于惰性载体上、有机溶液的缓慢蒸发分散、冷冻干燥和喷雾干燥等多种方法可以达到这个效果。
In order to purify product from other substance, the solid mixtures are usually comminuted and soaked out by diphenyl sulfone, and then recover the solvent by distillation and drying.
为了将产物与其它物料分离,通常将混合固体粉碎,首先用溶剂将二苯砜浸出,然后再经蒸馏、干燥,回收二苯砜。
Volatile components of fresh onion, vacuum freeze-drying onion and hot-air drying onion were obtained by simultaneous distillation-extraction(SDE), 36,33,27substances were analyzed by GC-MS.
采用同时蒸馏萃取的方法提取新鲜洋葱、真空冷冻干燥洋葱和热风干燥洋葱的挥发性成分,并经气质联用分析,分别析出36、33、27种物质。
Volatile components of fresh onion, vacuum freeze-drying onion and hot-air drying onion were obtained by simultaneous distillation-extraction(SDE), 36,33,27substances were analyzed by GC-MS.
采用同时蒸馏萃取的方法提取新鲜洋葱、真空冷冻干燥洋葱和热风干燥洋葱的挥发性成分,并经气质联用分析,分别析出36、33、27种物质。
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