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286953587

铁虫 (小有名气)

[求助] 有时间的,求指点····· 已有1人参与

本人,英语不是很好,求好友批改我对如下英文的翻译。(英文来自BP2013 氯霉素胶囊)
Suspend a quantity of the contents of the capsules containing 0.1 g of  Chloramphenicol in 60 mL of water and extract with two 20-mL quantities of  petroleum spirit (boiling range, 120° to 160°). Wash the combined extracts with two  15-mL quantities of water, add the washings to the aqueous layer, extract with four  50-mL quantities of ether  and evaporate the combined ether extracts. The residue complies with the following tests.

译文:取含0.1g氯霉素的试样,溶解于60ml水中 ,用20ml石油溶剂萃取两次,(回收水层),用15ml水洗涤石油萃取液两次,合并(四次的)水层,用50mL乙醚萃取,蒸干乙醚萃取液,残渣按照如下方法测定。

本人的疑惑:1、 petroleum spirit (boiling range, 120° to 160°)这是什么物质?
2、文中每次萃取到底是要水层还是要有几层?我翻译中有没有搞错?


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【答案】应助回帖

感谢参与,应助指数 +1
补充后译文:取含0.1g氯霉素的试样,溶解于60ml水中 ,用20ml石油醚萃取两次(回收油层,水层勿弃),分别用15ml水洗涤石油醚萃取液(油层)两次,合并(四次的)水层,(水层)分别用50mL乙醚萃取四次,蒸干乙醚萃取液,残渣按照如下方法测定。
     【petroleum spirit (boiling range, 120° to 160°)是石油醚】
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2楼2014-02-19 07:22:31
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286953587

铁虫 (小有名气)

谢谢。。。

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3楼2014-02-19 17:27:12
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