[實驗] column問題
各位版上大大好
小的最近實驗在分離純化compound
使用了silica gel與aluminium oxide兩種管柱
在閱讀一些資料與文獻後
我使用silica gel為極性固定相
使用EA/甲醇溶劑作為沖提液
是正相層析法
所以極性較低的compound會先被分離出來
而極性高的則較晚
而使用aluminium oxide為固定相
以dichloromethane/甲醇為沖提液
我的理解一樣是正相層析法
可是學長告訴我說aluminium oxide與silica gel通出來的結果會是相反的
所以極性高的會先下來
請問真的是這樣嗎?
第一次po文 用手機排版可能有點亂
麻煩各位大大解答一下 謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 218.166.224.201
※ 文章網址: https://www.ptt.cc/bbs/Chemistry/M.1475413411.A.4DB.html
推
10/02 21:05, , 1F
10/02 21:05, 1F
推
10/02 22:42, , 2F
10/02 22:42, 2F
推
10/02 22:47, , 3F
10/02 22:47, 3F
推
10/02 22:57, , 4F
10/02 22:57, 4F
→
10/02 22:58, , 5F
10/02 22:58, 5F
推
10/03 00:37, , 6F
10/03 00:37, 6F
推
10/04 15:57, , 7F
10/04 15:57, 7F
→
10/04 15:57, , 8F
10/04 15:57, 8F
→
10/04 16:00, , 9F
10/04 16:00, 9F
→
10/04 16:00, , 10F
10/04 16:00, 10F
→
10/05 03:58, , 11F
10/05 03:58, 11F
→
10/05 04:06, , 12F
10/05 04:06, 12F
→
10/05 04:07, , 13F
10/05 04:07, 13F
→
10/05 04:09, , 14F
10/05 04:09, 14F
→
10/05 08:07, , 15F
10/05 08:07, 15F
→
10/05 08:07, , 16F
10/05 08:07, 16F
→
10/05 08:53, , 17F
10/05 08:53, 17F
→
10/05 08:54, , 18F
10/05 08:54, 18F
推
10/05 13:42, , 19F
10/05 13:42, 19F
→
10/05 13:42, , 20F
10/05 13:42, 20F
→
10/05 14:14, , 21F
10/05 14:14, 21F
→
10/05 14:14, , 22F
10/05 14:14, 22F
推
10/05 14:17, , 23F
10/05 14:17, 23F
→
10/05 23:52, , 24F
10/05 23:52, 24F
→
10/05 23:52, , 25F
10/05 23:52, 25F
→
10/05 23:52, , 26F
10/05 23:52, 26F
→
10/05 23:52, , 27F
10/05 23:52, 27F
→
10/05 23:52, , 28F
10/05 23:52, 28F
→
10/05 23:52, , 29F
10/05 23:52, 29F
→
10/05 23:52, , 30F
10/05 23:52, 30F
→
10/05 23:52, , 31F
10/05 23:52, 31F