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随处grace

铜虫 (小有名气)


[交流] 冷冻干燥的部分疑惑~

各位大神,本人最近看到一篇文献步骤里用到冷冻干燥时有下列疑问:反应体系里有氧化石墨烯,金属离子和无机盐存在,文献中采取过滤,膜上干燥,滤液冷冻干燥,说这样可以除去衡量的金属离子和无机盐,得到的两部分再混合收集固体~~~我不明白的是为什么不直接冻干,而要过滤后再这样呢??望指教~~谢谢!
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随处grace

铜虫 (小有名气)


都只是来拿金币的么~没人可以交流交流的么!
13楼2015-08-09 17:54:29
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dmbb2楼
2015-08-09 16:57   回复  
随处grace(金币+1): 谢谢参与
2015-08-09 16:57   回复  
随处grace(金币+1): 谢谢参与
假大空4楼
2015-08-09 16:58   回复  
随处grace(金币+1): 谢谢参与
2015-08-09 17:04   回复  
随处grace(金币+1): 谢谢参与
2015-08-09 17:09   回复  
随处grace(金币+1): 谢谢参与
hangyezi7楼
2015-08-09 17:12   回复  
随处grace(金币+1): 谢谢参与
2015-08-09 17:24   回复  
youngen9楼
2015-08-09 17:26   回复  
随处grace(金币+1): 谢谢参与
jixiangbao10楼
2015-08-09 17:35   回复  
随处grace(金币+1): 谢谢参与
gorgan11楼
2015-08-09 17:35   回复  
随处grace(金币+1): 谢谢参与
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xiejf12楼
2015-08-09 17:39   回复  
随处grace(金币+1): 谢谢参与
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