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2013-05-23 12:21
求翻译：The residue was taken up in 300 mL water, acidified with conc. HCl, washed with 3x50ml methylene chloride, basified with 25% NaOH, and extracted with 3x100ml ethyl acetate. The combined organic extracts were washed with 75ml brine, followed by drying over anhydrous sodium sulfate with good magnetic stirring for 15 min.是什么意思？ 待解决
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The residue was taken up in 300 mL water, acidified with conc. HCl, washed with 3x50ml methylene chloride, basified with 25% NaOH, and extracted with 3x100ml ethyl acetate. The combined organic extracts were washed with 75ml brine, followed by drying over anhydrous sodium sulfate with good magnetic stirring for 15 min.
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