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Storage 8M Urea Aliquots at -20C?


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#1 amades

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Posted 13 July 2011 - 05:14 AM

Hello,

I accedently made 10x more denaturation-buffer (8M Urea/NaH2Po4/EDTA) than I need. I know urea-solutions should be made fresh, but can I store some aliquots at -20C and resolve the urea them in a waterbath before usage?

Greetings, Andreas

#2 mdfenko

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Posted 15 July 2011 - 06:04 AM

should be okay but don't warm them at temperatures above room temperature or you will cause the urea to decompose.
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