This method involves freezing the protein solution on the walls of a roundbottomedflask and sublimating the liquid in a vacuum.
这个方法包括将蛋白质溶液在圆底烧瓶的瓶壁上冰冻，和在真空中让液体升华。
2
In a 250-cc. three-necked, round-bottomedflask provided with a mechanical stirrer is placed 21.2g. (0.2 mole) of benzaldehyde , and 18.6 g. (0.2 mole) of aniline is added with rapid stirring.