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286953587

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[求助] 美国药典为什么写成这样。。。? 已有1人参与

各位好友请原谅我标题党。。。谢谢
下文是美国药典35版,地塞米松片溶出度测定,我看得不是很明白,求翻译一下,谢谢

Procedure—Extract a filtered aliquot of  Dissolution Medium,equivalent to about 200  μg of dexamethasone, with three 15mL portions of chloroform. Evaporate the combined chloroform extracts on a steam bath just to dr yness, cool, and dissolve the residue in 20 mL of alcohol. Proceed as directed for  Procedure under Assay for Steroids 〈351〉, except to allow to stand in the dark for 45 minutes. Calculate the portion, in mg, of C 22H29FO5 dissolved by the formula:
                                  10(C/V)(Au/As)
in which V is the volume, in mL, of the aliquot extracted with chloroform.
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286953587

铁虫 (小有名气)

求翻译

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2楼2013-12-23 09:04:20
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喵喵与咩咩

铁杆木虫 (著名写手)

要把生活过成诗和远方

【答案】应助回帖

感谢参与,应助指数 +1
操作:取过滤后的溶出样品适量,约200微克地塞米松,用15mL氯仿萃取三次(3个15ml)。合并萃取液,旋蒸得到干燥物,冷却,用20毫升乙醇复溶。其余操作请参照类固醇分析步骤<351>(除了不用静置在黑暗中45分钟)。以mg为单位计算,地塞米松C22H29FO5溶解度为:
                                  10(C / V)(Au/ As)
其中,V是体积(以mL为单位),是指用氯仿萃取得到的合并体积。
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3楼2013-12-23 12:52:28
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286953587

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引用回帖:
3楼: Originally posted by 喵喵与咩咩 at 2013-12-23 12:52:28
操作:取过滤后的溶出样品适量,约200微克地塞米松,用15mL氯仿萃取三次(3个15ml)。合并萃取液,旋蒸得到干燥物,冷却,用20毫升乙醇复溶。其余操作请参照类固醇分析步骤<351>(除了不用静置在黑暗中45分钟 ...

万分感谢。。。。愿生活开心,身体健康!
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4楼2013-12-23 22:18:22
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喵喵与咩咩

铁杆木虫 (著名写手)

要把生活过成诗和远方

【答案】应助回帖

求赏金币呢。。。O(∩_∩)O~
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5楼2013-12-28 09:58:14
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