 
Date:
Sun, 16 Oct 2005 23:10:41 EDT
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DJ Patil,
Many things can cause carbon peak to be miss shaped. You can have the drop
time incorrect and not getting good combustion, you may have restricted 2 mm
tubing causing excessive back pressure, the GC column may also have restriction.
I am assuming that the system is leak tight because a leak can cause this as
well, the EA should be leak checked isolated from your MS. Your consumables
may be a problem but I do not know where you are. If I have consumable problems
I go to the distributors of the instruments, if you let me know where you are
from I can direct you to your authorized Thermo Distributor.
Mike Elefante
Elf Analytical Services Inc.
USA 732-922-8400
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