>Hello,
We've started running our TCEA for waters (first go at it since machine 
installation, so I imagine more questions will be forthcoming).
A quick question:  is it recommended to lower the reactor temperature when 
changing the injector septum on the TCEA?  If so, how low should one go? If 
not, well, that would make the operation quicker.
Thanks in advance.




Lora L. Wingate
University of Michigan
Department of Geological Sciences
Stable Isotope Laboratory
1100 North University
1013 C.C. Little Building
Ann Arbor, MI 48109-1005