Mass scale calibration fails on Thermo MSQplus, calibration standard deviation and residual too large. How can I fix this?

The ESI-MS attached to our analytical HPLC is a Thermo MSQplus model. The mass scale was off by couple of units (+2 m/z) for a long time. I have recently started working with it and because I need...

28 July 2017 5,558 5 View