[求救] 關於生物鹼的問題（有獎金唷）

看板Biotech作者airolg (恩)時間16年前 (2010/01/16 21:54)推噓3(3推 0噓 17→)

留言20則, 3人參與討論串1/1

有兩題關於生物鹼以及分析化學的問題想請問各位大大都是單選但是沒有答案>_< 1.which is the best way to purify an alkaloid? [1]CH2Cl2/MeOH 98:2, Si column [2]acetate buffer/MeOH 80:20, C18 column [3]phosphate buffer/MeOH, PRP column [4]Ion pair elution in buffer, C18 column [5] NaCl gradient in phosphate buffer, anionic exchange column 2.which statement in the following is not correct? [1] supercritical fluid extraction is most useful for extraction of volatile components [2] CH2Cl2/MeOH 2:1 is best for the extractionof polar and nonpolar small molecules [3] acid buffer solution is best for the extraction of long chain fatty acids [4] acid bufffer solution is best for the extraction of alkaloids [5] none above 拜託各位高手解惑mOm 如有解出一題100P哦~~~~~~ :) -- 我很正吧~~╲ ◤ ◢ ─ ______█ <--方糖 ╰˙﹏˙█ " ﹀◤ ▕ ▏ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.217.99

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