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Here is the one that I ordered. There are a few companies that resell these but they are all the same so long as they have the "upgraded compressor" picture and the digital control panel. https://www.amazon.com/dp/B0BFDTG4NQ ----------------------------- I've been stalking this freezer and...

For the second you want to minimize the risk of contaminating the new vial, that is higher if you access it with the same needle you used to draw from the old vial. What I would do is use a needle to measure how much you have left in the old vial (insert needle draw up with out removing needle...

Not that it really matters to these argument, but the testing referenced was not done using a centrifuge. A fluorescence plate reader was used. The plate reader moved the plate in a 1 mm orbit 960 rpm, so small fast circles. Centrifuge speeds are much faster with more movement. Centrifuges...