Effects of LINAC potential on the simultaneous BT CID and ion/ion reaction of ubiquitin +7 in terms of (a) average spectrum m/z
, (b) average residual precursor ion charge state, and (c) total ion counts in the spectrum. Data collected with cation KE of 387.8 eV, CID gas pressure of 8.8 mTorr, Q2 LMCO of m/z 300, and anion injection time of 60 ms.