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3Â¥2009-02-12 18:15:19
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ckj33

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clkk216(½ð±Ò+1,VIP+0):лл²ÎÓë³æÓÑÌÖÂÛ~~£¡ 2-12 21:03
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2Â¥2009-02-12 16:33:31
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shitou0307

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clkk216(½ð±Ò+1,VIP+0):лл²ÎÓë³æÓÑÌÖÂÛ~~£¡ 2-13 18:53
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2Â¥µÄÒâ˼ÊÇÈÃÄãÏȰÑÕâ¸öÖ²ÎïÖеÄÓйػ¯Ñ§³É·ÖµÄÀí»¯ÐÔÖÊŪÇå³þ£¬È»ºó¸ù¾ÝÕâЩÀ´È·¶¨ÌáÈ¡·ÖÀëµÄ·½·¨£¬»òÕß¿ÉÒԲο¼ºÍÌ×ÓÃÀàËÆµÄÐÔÖʵϝºÏÎïµÄÌáÈ¡·½·¨£¬²»ÒªÖ¸ÍûÖ±½Ó¾ÍÄܲ鵽Ïֳɵķ½·¨£¬Òª²»È»Äã×öÁË»¹ÓÐʲôÒâÒåÄØ£¿
4Â¥2009-02-12 23:25:20
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albert3250

ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)

¡ï
clkk216(½ð±Ò+1,VIP+0):лл²ÎÓë³æÓÑÌÖÂÛ~~£¡ 2-13 18:53
i supported ckj33's word
whats ur compounds?
u have to find the polarity of ur compounds first
then choose the solvent to rechromatography that compounds
if they are major compounds
i think its easy to get them
u also have to research some literatures about ur compounds
5Â¥2009-02-13 00:50:24
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