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664866754木蟲 (小有名氣)
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[求助]
azeotroped with 的意思?
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The solvent was evaporated in vacuo and the residue azeotroped with ethanol(*2) and chromatographed on silica gel eluting with CH2Cl2/MeOH/NH3....... 請問azeotroped with ethanol是什么意思?是形成共沸溶液還是要共沸除水啊? 另外*2代表是除水兩次還是乙醇用量是剩余物的兩倍? [ Last edited by 664866754 on 2011-7-4 at 18:42 ] |


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