unstable corona discharge in APCI
Posted: Tue May 16, 2006 5:20 am
Hello everyone,
I'm using APCI (Micromass ZQ) negative mode and set the corona discharge to 5 micro A. But it fluctuates all the time and ranges from 3 to 11. Noisy background in the chromatogram!! Anyone know how to fix it? Please help!! Thanks
Kit
I'm using APCI (Micromass ZQ) negative mode and set the corona discharge to 5 micro A. But it fluctuates all the time and ranges from 3 to 11. Noisy background in the chromatogram!! Anyone know how to fix it? Please help!! Thanks
Kit