Heats of formation of the acetyl radical and ion obtained by threshold photoelectron photoion coincidence EA Fogleman, H Koizumi, JP Kercher, B Sztáray, T Baer
The Journal of Physical Chemistry A 108 (24), 5288-5294, 2004
69 2004 The kinetic energy dependence of association reactions. A new thermokinetic method for large systems H Koizumi, PB Armentrout
The Journal of chemical physics 119 (24), 12819-12829, 2003
51 2003 Collision-Induced Dissociation and Theoretical Studies of Cu+ −Dimethyl Ether Complexes H Koizumi, XG Zhang, PB Armentrout
The Journal of Physical Chemistry A 105 (11), 2444-2452, 2001
50 2001 Bond Dissociation Energies and Structures of CuNO+ and Cu(NO)2 + K Koszinowski, D Schröder, H Schwarz, MC Holthausen, J Sauer, ...
Inorganic chemistry 41 (22), 5882-5890, 2002
46 2002 Sequential bond energies of Ag+ (H2O) n and Ag+ (dimethyl ether) n, n= 1–4, determined by threshold collision-induced dissociation H Koizumi, M Larson, F Muntean, PB Armentrout
International Journal of Mass Spectrometry 228 (2-3), 221-235, 2003
42 2003 Simulation of duty cycle-based trapping and ejection of massive ions using linear digital quadrupoles: the enabling technology for high resolution time-of-flight mass … J Lee, MA Marino, H Koizumi, PTA Reilly
International journal of mass spectrometry 304 (1), 36-40, 2011
34 2011 Collision-induced dissociation and theoretical studies of Cu+ -dimethoxyethane complexes H Koizumi, PB Armentrout
Journal of the American Society for Mass Spectrometry 12 (5), 480-489, 2001
34 2001 Heats of formation of the propionyl ion and radical and 2, 3-pentanedione by threshold photoelectron photoion coincidence spectroscopy JP Kercher, EA Fogleman, H Koizumi, B Sztáray, T Baer
The Journal of Physical Chemistry A 109 (5), 939-946, 2005
27 2005 Sequential Bond Energies of Fe+ (CO2 )n n = 1−5, Determined by Threshold Collision-Induced Dissociation and ab Initio Theory PB Armentrout, H Koizumi, M MacKenna
The Journal of Physical Chemistry A 109 (50), 11365-11375, 2005
26 2005 Trapping of intact, singly-charged, bovine serum albumin ions injected from the atmosphere with a 10-cm diameter, frequency-adjusted linear quadrupole ion trap H Koizumi, WB Whitten, PTA Reilly
Journal of the American Society for Mass Spectrometry 19 (12), 1942-1947, 2008
25 2008 Collision-Induced Dissociation and Theoretical Studies of Ag+ (methanol)n n = 1− 4 H Koizumi, M Larsen, PB Armentrout, D Feller
The Journal of Physical Chemistry A 107 (16), 2829-2838, 2003
25 2003 Heats of formation of GeH4, GeF4 and Ge (CH3) 4 H Koizumi, JZ Dávalos, T Baer
Chemical physics 324 (2-3), 385-392, 2006
23 2006 Reaction of H Koizumi, F Muntean, PB Armentrout
The Journal of chemical physics 120 (2), 756-766, 2004
21 2004 Derivation of mathematical expressions to define resonant ejection from square and sinusoidal wave ion traps H Koizumi, WB Whitten, PTA Reilly, E Koizumi
International Journal of Mass Spectrometry 286 (2-3), 64-69, 2009
20 2009 Characterization of quadrupole mass filters operated with frequency-asymmetric and amplitude-asymmetric waveforms GF Brabeck, H Koizumi, E Koizumi, PTA Reilly
International Journal of Mass Spectrometry 404, 8-13, 2016
15 2016 Agile high resolution arbitrary waveform generator with jitterless frequency stepping PTA Reilly, H Koizumi
US Patent 7,714,623, 2010
15 2010 A novel phase-coherent programmable clock for high-precision arbitrary waveform generation applied to digital ion trap mass spectrometry H Koizumi, B Jatko, WH Andrews Jr, WB Whitten, PTA Reilly
International Journal of Mass Spectrometry 292 (1-3), 23-31, 2010
15 2010 Controlling the expansion into vacuum—the enabling technology for trapping atmosphere-sampled particulate ions H Koizumi, X Wang, WB Whitten, PTA Reilly
Journal of the American Society for Mass Spectrometry 21 (2), 242-248, 2010
15 2010 The Heats of Formation of tert -Butyl Isocyanide and Other Alkyl Isocyanides by Photoelectron Photoion Coincidence Spectroscopy H Koizumi, T Baer
The Journal of Physical Chemistry A 108 (28), 5956-5961, 2004
15 2004 Theoretical and ATR-FTIR study of free 12-crown-4 in aqueous solution T Arora, H Ali, WA Burns, E Koizumi, H Koizumi
Chemical Physics Letters 502 (4-6), 253-258, 2011
14 2011 