How to explain/fix low intensities of calibration standard in Q3 positive mode on a 3200Qtrap (Absciex)?

After cleaning of the curtain plate, source, skimmer and Q0 of our 3200QTRAP (Absciex) Intensities of our Q3+ are 10 times lower than before. Q1+ intensities and peak widths are fine. We checked...

03 January 2019 948 2 View