冷冷的冰雨 2009/08/27
[quote]原文由 [B]hgycook[/B] 发表: 最近我的氨基柱状态不是很好,做样塔板数不够,想再生下,可是柱说明书找不到了。(柱子买了很长时间了) 菲罗门柱[/quote]或者NH2柱用于反相条件时,NH2键会水解,尤其是在该柱子pH范围以外,在极端酸性和碱性条件下柱寿命会下降很快,如果在这个条件下使用需要清洗一下,需要用10倍柱体积溶液冲洗,如下: 95%水/5%乙腈 THF四氢呋喃 95%乙腈/5%水 并保持95%乙腈/5%水继续冲洗,以低流速0.2-0.5mL/min过夜冲洗。
老多_小多 2009/08/27
http://www.instrument.com.cn/bbs/shtml/20090319/1794559/ 看下有没有用
〓猪哥哥〓 2009/08/27
Waters Spherisorb氨基柱的柱清洗资料,供你参考。 Cleaning: 20 volumes of the following in order: water, ACN, DCM, ACN, water for reversed phase. 20 volumes of the following for normal phase: Hexane, DCM, ACN, DCM, Hexane. For sugar the column should be washed with 0.1% diethylenetriamine or triethylenetetramine in 50/50 MeCN/water for about 100 column volumes and then used in the MeCN/water mobile phase necessary for getting good retention for his carbohydrates. ----来源于网络
bjliuzhen 2009/08/27
[quote]原文由 [B]hgycook[/B] 发表: 最近我的氨基柱状态不是很好,做样塔板数不够,想再生下,可是柱说明书找不到了。(柱子买了很长时间了) 菲罗门柱[/quote] 找菲罗门的代理要一份说明书吧,会给的。我当初就要过 ,或者上他们网站看看!
hahahe 2009/08/27
要看你的是正相还是反相?
〓猪哥哥〓
第7楼2009/08/27
Waters Spherisorb氨基柱的柱清洗资料,供你参考。
Cleaning: 20 volumes of the following in order: water, ACN, DCM, ACN, water for reversed phase. 20 volumes of the following for normal phase: Hexane, DCM, ACN, DCM, Hexane. For sugar the column should be washed with 0.1% diethylenetriamine or triethylenetetramine in 50/50 MeCN/water for about 100 column volumes and then used in the MeCN/water mobile phase necessary for getting good retention for his carbohydrates.
----来源于网络