Friday, December 22, 2006

Air out. Titanium tetrachloride in.

I've been blogging sporadically lately; sorry about that. In the department of simple but really useful ideas, a postdoc in the lab next door is using a vacuum food sealer to package up some moisture-sensitive reagents. I can understand that he probably doesn't want to bother using our glovebox to store chemicals. Happy Chrismahannukwanzaakah to you all, and thanks for reading.



At 4:33 PM, Anonymous Uncle Al said...

When you syringe nasty stuff up through a septum and the naked needle tip hits air...

Take a half-inch section of 7 mm tubing, ram a little septum into each end to make a chamber. Flush with inert gas as desired. Put the syringe needle through the chamber kissing the source bottle septum. Withdraw your fluid and pull the needle tip back into the chamber. No matter how awful the goo you get a clean needle and uncontaminated reactant injected into your reaction when you push through again.


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