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geoffrey klein
geoffrey klein
Unknown affiliation
Verified email at cnu.edu
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Oligomers formed through in-cloud methylglyoxal reactions: Chemical composition, properties, and mechanisms investigated by ultra-high resolution FT-ICR mass spectrometry
KE Altieri, SP Seitzinger, AG Carlton, BJ Turpin, GC Klein, AG Marshall
Atmospheric Environment 42 (7), 1476-1490, 2008
3452008
Probing molecular-level transformations of dissolved organic matter: insights on photochemical degradation and protozoan modification of DOM from electrospray ionization …
EB Kujawinski, R Del Vecchio, NV Blough, GC Klein, AG Marshall
Marine Chemistry 92 (1-4), 23-37, 2004
2942004
Mass spectral analysis of asphaltenes. II. Detailed compositional comparison of asphaltenes deposit to its crude oil counterpart for two geographically different crude oils by …
GC Klein, S Kim, RP Rodgers, AG Marshall, A Yen
Energy & fuels 20 (5), 1973-1979, 2006
2022006
Mass spectral analysis of asphaltenes. I. Compositional differences between pressure-drop and solvent-drop asphaltenes determined by electrospray ionization Fourier transform …
GC Klein, S Kim, RP Rodgers, AG Marshall, A Yen, S Asomaning
Energy & fuels 20 (5), 1965-1972, 2006
1742006
Use of saturates/aromatics/resins/asphaltenes (SARA) fractionation to determine matrix effects in crude oil analysis by electrospray ionization Fourier transform ion cyclotron …
GC Klein, A Angström, RP Rodgers, AG Marshall
Energy & fuels 20 (2), 668-672, 2006
1662006
Identification of water-soluble heavy crude oil organic-acids, bases, and neutrals by electrospray ionization and field desorption ionization Fourier transform ion cyclotron …
LA Stanford, S Kim, GC Klein, DF Smith, RP Rodgers, AG Marshall
Environmental science & technology 41 (8), 2696-2702, 2007
1542007
Identification of hydrotreatment-resistant heteroatomic species in a crude oil distillation cut by electrospray ionization FT-ICR mass spectrometry
GC Klein, RP Rodgers, AG Marshall
Fuel 85 (14-15), 2071-2080, 2006
1002006
Comprehensive compositional analysis of hydrotreated and untreated nitrogen-concentrated fractions from syncrude oil by electron ionization, field desorption ionization, and …
J Fu, GC Klein, DF Smith, S Kim, RP Rodgers, CL Hendrickson, ...
Energy & Fuels 20 (3), 1235-1241, 2006
992006
Crude oil polar chemical composition derived from FT− ICR mass spectrometry accounts for asphaltene inhibitor specificity
DF Smith, GC Klein, AT Yen, MP Squicciarini, RP Rodgers, AG Marshall
Energy & Fuels 22 (5), 3112-3117, 2008
902008
Oil reservoir characterization via crude oil analysis by downhole fluid analysis in oil wells with visible− Near-infrared spectroscopy and by laboratory analysis with …
OC Mullins, RP Rodgers, P Weinheber, GC Klein, L Venkataramanan, ...
Energy & Fuels 20 (6), 2448-2456, 2006
642006
Comprehensive approach to the development of communication and critical thinking: Bookend courses for third-and fourth-year chemistry majors
GC Klein, JM Carney
Journal of Chemical Education 91 (10), 1649-1654, 2014
412014
Influence of bedrock geology on dissolved organic matter quality in stream water
JJ Mosher, GC Klein, AG Marshall, RH Findlay
Organic Geochemistry 41 (11), 1177-1188, 2010
332010
Probing molecular-level transformations of dissolved organic matter: insights from electrospray ionization Fourier-transform ion cyclotron resonance mass spectrometry
EB Kujawinski, R Del Vecchio, NV Blough, GC Klein, AG Marshall
Mar. Chem 92 (1-4), 23-37, 2004
122004
Homeopathic dilutions, Hahnemann principles, and the solvent issue: must we address ethanol as a “homeopathic” or a “chemical” issue?
S Chirumbolo, G Bjørklund
Homeopathy 107 (01), 040-044, 2018
112018
Characterization of the chemical properties of crude oils to explain observed asphaltene inhibitor specificity
M Squicciarini, A Yen, DF Smith, RP Rodgers, AG Marshall, GC Klein
SPE International Conference on Oilfield Chemistry?, SPE-106209-MS, 2007
112007
Petroleomics: electrospray ionization FT-ICR mass analysis of NSO compounds for correlation between total acid number, corrosivity, and elemental composition
GC Klein, RP Rodgers, MAG Teixeira, A Teixeira, AG Marshall
Fuel Chemistry Division Preprints 48 (1), 14-15, 2003
102003
Environmental applications of ESI FT-ICR mass spectrometry: The identification of polar N, S and O containing PAH species in crude oil and coal extracts
RP Rodgers, GC Klein, Z Wu, AG Marshall
Prepr. Pap.-Am. Chem. Soc., Div. Fuel Chem 48 (2), 758, 2003
72003
Petroleomics: applications in the fingerprinting of the acidic and basic crude oil components detected by electrospray ionization Fourier transform ion cyclotron resonance mass …
GC Klein
The Florida State University, 2005
62005
Petroleomics: ESI FT-ICR MS identification of hydrotreatment-resistant neutral and acidic nitrogen species in crude oil
RP Rodgers, GC Klein, V Nowlan, AG Marshall
Abstr. Papers Am. Chem. Soc 226, U535, 2003
52003
Characterization of Heavy, Biodegraded Crude Oils by High Resolution ESI FT-ICR Mass Spectrometry
RP Rodgers, GC Klein, LA Stanford, S Kim, AG Marshall
Am. Chem. Soc. Abstr 228, U654, 2004
22004
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