Lössner C, Blackstock W, Gunaratne J.
J Am Soc Mass Spectrom. 2012 Jan;23(1):186-9.
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.
http://www.springerlink.com/content/5t1333121121w327/Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Singapore, Singapore 138673.