Enhanced Performance of Pulsed Q Collision Induced Dissociation-Based Peptide Identification on a Dual-Pressure Linear Ion Trap
2012
Pulsed Q collision induced dissociation (PQD) was introduced for isobaric tag quantification on linear ion traps to circumvent the problem of the low-mass cut-off for collision induced dissociation (CID). Unfortunately, fragmentation efficiency is compromised and PQD has found limited use for identification as well as quantification. We demonstrate that PQD has a comparable peptide identification performance to CID on dual-pressure linear ion traps, opening the potential for wider use of isobaric tag quantification on this new generation of linear ion traps.
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