作者查詢 / zzxxzz
作者 zzxxzz 在 PTT [ Chemistry ] 看板的留言(推文), 共244則
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收起看板(529)
1F推:想知道+107/02 21:08
1F推:凍乾看看06/24 03:30
1F→:有這些know how起碼值千萬 你來這裡想免費問到除非遇到佛06/22 23:31
5F→:不溶的話極性再高也流不出來06/20 22:58
6F→:就算結構有酸也很難用 我用過=_=因為column tlc會越爬越高06/20 23:10
10F推:純DCM也可流COLUMN 若TLC Rf>0.3的話06/21 18:22
13F推:但是很慢 很貴06/22 14:14
1F推:真有GUTS06/20 22:04
1F推:像這種建議你用MeOH CHCl3 cosolvent 每半小觀察一次 起始06/15 14:55
2F→:物用盡馬上收 我作過跟你幾乎一樣的起始物 ok的啦06/15 14:55
3F→:chcl2 才對 更正06/15 14:56
4F→:CH2Cl206/15 14:57
5F→:大約1小會結束 不要放超過2小06/15 14:58
19F→:silica gel我以前試過室溫ovn不會掉06/20 22:59
20F→:你真的擔心就DCM/TFA/有無甲醇都做一鍋比對tlc06/20 23:00
21F→:你問的這些問題我以前都遇過 有股回首當年辛勞的既視感06/20 23:07
2F→:支那言不可信06/14 15:09
4F噓:超混06/07 14:47
7F→:有爭議的不會考06/01 15:30
1F推:Use Everything except target compound.04/09 06:56