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PROBLEMS WITH TURBO MOLECULAR PUMP OF SHIMADZU GCMS-QP2010
Posted: Tue Apr 22, 2008 8:00 am
by CRISTINA DURAN
We are users of a SHIMADZU GCMS-QP2010, since we bought it we have a lot of problems: the ion source are dirty without a reason, repetitive leaks that we can solve, the “gainâ€
Posted: Sun Apr 27, 2008 2:38 am
by pueblito
Dear Cristina.
We have a QP2010 too.
the turbo pump number 1( because it has two) Just failed last week after four years of use .....and yours?.
I usually perform autotunig with a DB or HP 30m x 0.25 x 0.25 and results good. To do autotuning with a wide bore or megabore column is run in trouble because there isnt enough vacuum level.
good bye.
Posted: Thu May 01, 2008 4:29 am
by Brent
I've been running a QP2010 for about 2 years now and have had no problems with the turbomolecular pumps.
Posted: Mon May 05, 2008 4:19 pm
by sassman
I have been using a QP2010 for two years with no vacuum problems. Perhaps your problems with dirty source and "gain" changes are related to a bad column. I'd recommend using a low bleed column made for GC/MS.