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季风月

金虫 (正式写手)

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[求助] 中药提取物做MTT时,药物浓度的配置 已有1人参与

中药提取物做MTT时,药物浓度该怎么配置?比如说提取得到2.134g(不是粉末,稠状物,直接称不好称)放在小的青霉素瓶中,怎样把她配成200ug/ml; 250ug/ml; 300ug/ml; 350ug/ml; 400ug/ml.是不是要配什么母液?具体怎么操作?越详细越好...求做过的大侠解答。
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DaDa024

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感谢参与,应助指数 +1
xiaoxiao270: 金币+1, 3Q 2014-09-01 22:15:53
你可以拿0.6或1ml 的离心管,用200ul 的移液枪头之类的沾取提取物到离心管的底部,注意要一点点来,尽量放到底部去。我实验室是习惯配成40mg/ml保存,如称量4mg ,然后加入DMSO 100ul ,涡旋震荡充分溶解(不确定样品时候稳定的话不要轻易超声),离心,看能不能完全溶解。然后每次根据需要取出一部分稀释成所需浓度,
2楼2014-09-01 16:35:20
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