Today I was asked to order some PBS buffer from Sigma. We usually have some PBS in the form of some tables for easy buffer prep. So today a post doc used the last of them and asked for some more, but they were back ordered at sigma. In fact the only PBS buffer, which was not on back order was 1 l of a 10x buffer for almost 1000 DKR and that was way to expensive we decided. We also looked at a couple of other places, but nothing on stock. So what is going on here? I mean weird proteins and rare metals being on back order, OK but PBS? How hard is to make 10.000 liters of that asap?
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