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雨淋过的空气

金虫 (初入文坛)

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The obtained residue was suspended in water (20 mL) and extracted with 3 × 50 mL of methylene chloride. The organic extracts were combined, washed with water and brine, and dried over with anhydrous sodium sulfate. The dried solution was then evaporated to obtain the crude product as yellow solid, which was purified by flash chromatographic column (petroleum ether/ethyl acetate: 10/1) to afford 5
这个后处理是怎么操作的,有人能帮我看一下吗?非常感谢!
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至尊木虫 (知名作家)

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雨淋过的空气: 金币+5, 翻译EPI+1, ★★★很有帮助, 谢谢! 2016-08-25 17:37:35
将得到的残余物悬浮于水(20 ml),并经 50 ml 二氯甲烷萃取三次。合并有机萃取液,用水和盐水洗涤后,再用无水硫酸钠干燥。干燥溶液经蒸发得到黄色固体粗产物,通过快速层析柱纯化这些粗产物(用石油醚/乙酸乙酯洗脱:按10/1比例),得到产物 5。
2楼2016-08-25 08:15:44
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