Problems with Shimadzu GCMS

Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.

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: Ron

: Posts: 586; Joined: Mon Oct 04, 2004 3:00 am

by Ron » Tue Sep 29, 2009 5:40 pm

This sounds like a big leak, it should take at least 15 to 20 seconds for the vacuum to decrease enough to open the door.

: LWC

: Posts: 48; Joined: Tue Aug 12, 2008 3:09 pm

by LWC » Tue Sep 29, 2009 5:52 pm

Yes we had issues with the O-ring that fits in the door, it wasn't sealing properly, but that has been fixed.

Sensitivity is a gonner HELP!!

: LWC

: Posts: 48; Joined: Tue Aug 12, 2008 3:09 pm

by LWC » Fri Oct 23, 2009 7:30 pm

Okay so the ugly problem has reared its ugly head AGAIN!!!! Sensititivy took a nose dive this week. Tunes are only slightly off, I am planning on cleaning the MS next wk anyone have any other suggestions?? Could the silly thing just be dying?

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