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lyj870510

新虫 (初入文坛)

[求助] 靛玉红的干燥

以回收甲醇为溶剂,从凝胶柱子下来的靛玉红样品,含量测定无法达到要求纯度,怀疑是不够干燥,可能含有水,求怎样能完全干燥
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睡神猪小懒

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lyj870510: 金币+1 2013-04-06 16:57:23
水分不影响纯度啊
2楼2013-04-02 18:29:36
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lyj870510

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引用回帖:
2楼: Originally posted by 睡神猪小懒 at 2013-04-02 18:29:36
水分不影响纯度啊

含量测定时用的是外标一点法,称量样品时水分影响重量
3楼2013-04-02 18:46:02
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