哪位高手帮我解释一下这段文献? 我在看的文献里有这么一段话 "After the mixture was dried over sodium sulfate, and filtered through a short silica gel column(ether as an eluent), the combined solution was concentrated in vacuo. The resulting oily residue was purified by bulb-to-bulb distillation(bath temp 90-100 oC/0.5mmHg)to give the desired product as pale yellow oil." 我有几个问题不懂: 硫酸钠 干燥液为什么通过 硅胶 柱过滤,直接过滤不行吗?真空旋干液通常都很少了,还能通过bulb-to-bulb蒸馏装置纯化吗?实验室没有这种仪器,能找什么替代吗? 最近实验不顺,老板逼的很紧,希望高手能帮帮忙!先谢了。查看更多8个回答 . 1人已关注