I noticed a question on Isogechem a few years back requesting an
north American supplier for the TC/EA thermocouple MAT number
1121470. I'm referring to the thermocouple on the main furnace at hi
temperature. Mine burned out two weeks ago and my spare burned out
yesterday. Finnigan says they are back ordered for 6 weeks.
Has anyone discovered another place to buy them??
I am also curious about the life span of the GC column in the
TC/EA. I was having problems with background when running CO. I was
able to bring down the background on 28 and 29 by backing out at 300
C but mass 30 stayed fairly high. My TC/EA is 4 year old. Is there
any reason to change the GC column. I also understand that the
Chrompack column is no longer available. has anyone tried a substitute?
Dr. Andrew Campbell
Professor of Geology
Earth and Environmental Sciences
New Mexico Tech
Socorro NM 87801
Please note new area code