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紫燕飞翔

金虫 (正式写手)

[求助] 称药品有什么小窍门?

实验用的一种缩醛类药品,熔点很低,大约在四十度左右,在实验中要求确定其质量,但是实际称量中,这种药品很容易就融化了,而且在瓶子里的药品都凝结成块了(冰箱上层保存),很难抠出来,非常费劲儿,请问各位有什么称量的窍门吗?不胜感激~

[ Last edited by sddtc888 on 2013-9-3 at 11:02 ]
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乘风牧云

木虫 (职业作家)

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【答案】应助回帖

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感谢参与,应助指数 +1
sddtc888: 金币+1, 感谢应助,欢迎常来! 2013-09-03 11:03:09
融化又不影响称重,减重法称量即可

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乘长风以牧青云
2楼2013-09-03 10:44:32
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caominone

木虫之王 (知名作家)

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【答案】应助回帖

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感谢参与,应助指数 +1
sddtc888: 金币+1, 感谢应助,欢迎常来! 2013-09-03 11:03:15
融化后只要不挥发就不影响称重,实在不行,用注射器量取。
锅可以背,但不能不明不白
3楼2013-09-03 10:48:03
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