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The vessel of the rotary evaporator was washed with 1mL of 10%  A/H twice and each washing was loaded on the Florisil cartridge.   The cartridge was washed with 6mL of 10% A/H and then eluted with 15mL of 20% A/H. The eluate was collected in a test tube and concentrated by the centrifugal concentrator.
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Originally posted by yangischao at 2010-07-20 11:31:52:

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15mL of 20% A/H ÊÇÓÃÀ´×öÇåÏ´Óõģ¬Õ⵱Ȼ¾Í°üÀ¨ÔÚ×îºóµÄÈÜÒºÀïÀ²¡£
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