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Last by Mike Gruidl on Feb 22, 2013, 1:22pm
It's bound to happen in every lab. Someone is going to get distracted and for whatever reason a box full of tubes or tubes themselves are going to accidentally get dropped in the lab's liquid nitrogen container. A lot of people might say, "Screw it," and leave those samples on the bottom of the tank. This might be a good solution for some samples, but what happens when you drop half a rack of boxes to the bottom of your tank? And what happens when those boxes are full of very important cell lines that keep your lab running?
I don't want to admit it, but this is exactly what happened to me today. I was preparing an order for a collaborator and getting 5 of my cell lines out of liquid nitrogen storage. I was explaining to my summer students how to safely handle liquid nitrogen, always wear cryoprotective gloves, lift the rack slowly and be sure to drain all of the liquid nitrogen before handling the boxes, etc. I got the box I needed, and put the rack back in the tank while I was hunting for my cells. Unfortunately, I forgot to put the wire back in the rack that holds the boxes in place. When I went to put the box back that I was handling, I pulled the rack up and half the boxes were gone. "Oh, shit."
So now the rack doesn't fit in . . . More