How much of the stock solution should you add

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You are ready to run your gel but you discover that there is no more running buffer. You need to make 400 ml of 1X TBE containing 0.5 ug/ml ethidium bromide. The stock solution of ethidium bromide is at a concentration of 10 mg/ml. How much of the stock solution should you add to your 400 ml of 1X TBE?

Reference no: EM13118989

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