| 6 | 1/1 | 返回列表 |
| 查看: 755 | 回復(fù): 5 | |||
[求助]
求教一個關(guān)于柱色譜分離與化工的問題
|
| 在做化工設(shè)計的過程中,文獻(xiàn)中采用了柱色譜分離這種方法,我是小白,貌似實際化工過程沒有這種過程,不知道該用什么方法來代替,虛心求教! |
榮譽版主 (知名作家)
努力努力
![]() |
專家經(jīng)驗: +52 |
金蟲 (正式寫手)
| 有柱色譜分離這種方法,樓主可以看一下固體吸附劑分離技術(shù)及比表面這方面的書,里面有的,我以前見過。固體吸附劑分離技術(shù)主要有兩種原理,一個是組分吸附性能不同,如變壓吸附及變溫吸附,另外一種就是各組分在吸附劑床層中的傳遞速率不同,即柱色譜分離技術(shù),如氣相、液相色譜。希望對你有用 |
|
After completionof the reaction monitored by TLC, the mixture was evaporated,washed with brine, extracted with CH2Cl2 and dried over MgSO4. The dried organic layer was concentrated, then purified by column chromatography (petroleum ether/EtOAc; 3:1) to give the known 28 as a white solid (140.2 mg, 62.1%) |
|
After completion of the reaction monitored by TLC, the mixture was evaporated,washed with brine, extracted with CH2Cl2 and dried over MgSO4. The dried organic layer was concentrated, then purified by column chromatography (petroleum ether/EtOAc; 3:1) to give the known 28 as a white solid (140.2 mg, 62.1%)。那個2的8次方是什么意思!這個可不可以啊! |
金蟲 (正式寫手)
| 6 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 一志愿吉林大學(xué)材料學(xué)碩321求調(diào)劑 +4 | Ymlll 2026-03-18 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 330求調(diào)劑 +3 | 小材化本科 2026-03-18 | 3/150 |
|
|
[考研] 267一志愿南京工業(yè)大學(xué)0817化工求調(diào)劑 +8 | SUICHILD 2026-03-12 | 8/400 |
|
|
[考研] 295求調(diào)劑 +3 | 一志愿京區(qū)211 2026-03-18 | 5/250 |
|
|
[考研] 材料,紡織,生物(0856、0710),化學(xué)招生啦 +3 | Eember. 2026-03-17 | 9/450 |
|
|
[考研] 277調(diào)劑 +5 | 自由煎餅果子 2026-03-16 | 6/300 |
|
|
[考研] 268求調(diào)劑 +8 | 一定有學(xué)上- 2026-03-14 | 9/450 |
|
|
[考研] 211本,11408一志愿中科院277分,曾在中科院自動化所實習(xí) +6 | Losir 2026-03-12 | 7/350 |
|
|
[考研] 機械專碩325,尋找調(diào)劑院校 +3 | y9999 2026-03-15 | 5/250 |
|
|
[考研] 304求調(diào)劑 +3 | 曼殊2266 2026-03-14 | 3/150 |
|
|
[考研] 321求調(diào)劑 +5 | 大米飯! 2026-03-15 | 5/250 |
|
|
[考研] 326求調(diào)劑 +3 | mlpqaz03 2026-03-15 | 3/150 |
|
|
[考研] 26考研一志愿中國石油大學(xué)(華東)305分求調(diào)劑 +3 | 嘉年新程 2026-03-15 | 3/150 |
|
|
[考研] 288求調(diào)劑 +4 | 奇點0314 2026-03-14 | 4/200 |
|
|
[考研] 0856材料與化工301求調(diào)劑 +5 | 奕束光 2026-03-13 | 5/250 |
|
|
[考研] 281求調(diào)劑 +9 | Koxui 2026-03-12 | 11/550 |
|
|
[考研] 295求調(diào)劑 +3 | 小匕仔汁 2026-03-12 | 3/150 |
|
|
[考研] 328化工專碩求調(diào)劑 +4 | 。,。,。,。i 2026-03-12 | 4/200 |
|
|
[考研] 085600材料與化工 309分請求調(diào)劑 +7 | dtdxzxx 2026-03-12 | 8/400 |
|
|
[考研] 308求調(diào)劑 +3 | 是Lupa啊 2026-03-12 | 3/150 |
|