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Abaye, Daniel A., Pullen, Frank S. and Nielsen, Birthe V. ORCID: 0000-0002-0849-4987 (2011) Practical considerations in analysing neuropeptides, calcitonin gene-related peptide and vasoactive intestinal peptide, by nano-electrospray ionisation and quadrupole time-of-flight mass spectrometry: Monitoring multiple protonations. Rapid Communications in Mass Spectrometry, 25 (8). pp. 1107-1116. ISSN 0951-4198 (Print), 1097-0231 (Online) (doi:https://doi.org/10.1002/rcm.4961)

Alex, Alexander, Harvey, Sophie, Parsons, Teresa, Pullen, Frank S., Wright, Patricia and Riley, Jo-Anne (2009) Can density functional theory (DFT) be used as an aid to a deeper understanding of tandem mass spectrometric fragmentation pathways? Rapid Communications in Mass Spectrometry, 23 (17). pp. 2619-2627. ISSN 0951-4198 (Print), 1097-0231 (Online) (doi:https://doi.org/10.1002/rcm.4163)

Lapthorn, Cris, Dines, Trevor J., Chowdhry, Babur Z., Perkins, George L. and Pullen, Frank S. (2013) Can ion mobility mass spectrometry and density functional theory help elucidate protonation sites in 'small' molecules? Rapid Communications in Mass Spectrometry, 27 (21). pp. 2399-2410. ISSN 0951-4198 (Print), 1097-0231 (Online) (doi:https://doi.org/10.1002/rcm.6700)

Wright, Patricia, Alex, Alexander, Nyaruwata, Tsitsi, Parsons, Teresa and Pullen, Frank (2010) Using density functional theory to rationalise the mass spectral fragmentation of maraviroc and its metabolites. Rapid Communications in Mass Spectrometry, 24 (7). pp. 1025-1031. ISSN 0951-4198 (Print), 1097-0231 (Online) (doi:https://doi.org/10.1002/rcm.4458)