sawtooth-shaped baseline
Posted: Thu Nov 29, 2012 8:17 am
Hi,
i have a problem with a GC-MS system, a PE Clarus 500. After switching to a new computer and software version, and cleaning the source, everything works fine except the baseline gets a very regular sawtooth-like shape, like in the image below (hope it works).
The sawtooth shape is present, even worse, in all TIC traces, and so interferes badly with eh..everything.
You think this has to do with positioning the column in the ion source, or might it be software (tuning) related? I'm quite new to MS, this was the first time i took it apart all by myself. So i really want to get it to work again.
i have a problem with a GC-MS system, a PE Clarus 500. After switching to a new computer and software version, and cleaning the source, everything works fine except the baseline gets a very regular sawtooth-like shape, like in the image below (hope it works).
The sawtooth shape is present, even worse, in all TIC traces, and so interferes badly with eh..everything.
You think this has to do with positioning the column in the ion source, or might it be software (tuning) related? I'm quite new to MS, this was the first time i took it apart all by myself. So i really want to get it to work again.