Search Results - "Winger, B E"

Artifactual formylation of the secondary amine of duloxetine hydrochloride by acetonitrile in the presence of titanium dioxide: Implications for HPLC method development by Skibic, M.J., King, L.A., Khan, M., Fox, P.J., Winger, B.E., Baertschi, S.W.

“…Duloxetine hydrochloride, a secondary amine containing pharmaceutical, currently marketed as Cymbalta™, is shown to undergo N-formylation as an artifact of…”
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Observation of a small oligonucleotide duplex by electrospray ionization mass spectrometry by Light-Wahl, K. J, Springer, D. L, Winger, B. E, Edmonds, C. G, Camp, D. G, Thrall, B. D, Smith, R. D

“…Electrospray ionization (ESI) has been demonstrated to be a "soft" ionization technique, allowing accurate molecular weight determination for biopolymers due…”
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Surface reactions and surface-induced dissociation of polyatomic ions at self-assembled organic monolayer surfaces by Winger, B. E, Julian, R. K, Cooks, R. G, Chidsey, C. E. D

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Observation of the multimeric forms of concanavalin A by electrospray ionization mass spectrometry by Light-Wahl, K. J, Winger, B. E, Smith, R. D

“…In this communication, we report the successful ionization and dethection of the dimeric and tetrameric forms of concanavalin A (Con A) by ESI/MS. Concanavalin…”
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Gas-phase proton transfer reactions involving multiply charged cytochrome c ions and water under thermal conditions by Winger, Brian E., Light-Wahl, Karen J., Richard D, Smith

“…Investigations of gas-phase proton transfer reactions have been performed on protein molecular ions generated by electrospray ionization (ESI). Their reactions…”
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Probing qualitative conformation differences of multiply protonated gas-phase proteins via H/D isotopic exchange with D2O by WINGER, B. E, LIGHT-WAHL, K.J, ROCKWOOD, A. L, SMITH, R. D

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High-resolution accurate mass measurements of biomolecules using a new electrospray ionization ion cyclotron resonance mass spectrometer by Winger, Brian E., Hofstadler, Steven A., Bruce, James E., Udseth, Harold R., Smith, Richard D.

“…A novel electrospray ionization/Fourier transform ion cyclotron resonance mass spectrometer based on a 7-T superconducting magnet was developed for…”
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New developments in microscale separations and mass spectrometry for biomonitoring: capillary electrophoresis and electrospray ionization mass spectrometry by Smith, R D, Wahl, J H, Light-Wahl, K J, Winger, B E

“…In this article, we briefly highlight the use of capillary electrophoresis for sampling, manipulating, and separating extremely small sample sizes. The…”
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Characterization of Combinatorial Peptide Libraries by Electrospray Ionization Fourier Transform Mass Spectrometry by Winger, Brian E., Campana, Joseph E.

“…The advantages of Fourier transform mass spectrometry (FTMS) are precision high mass accuracy measurements and the capability of high resolution, multistage…”
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Proton transfer reaction studies of multiply charged proteins in a high mass-to-charge ratio quadrupole mass spectrometer by Ogorzalek Loo, Rachel R., Winger, Brian E., Smith, Richard D.

“…Proton transfer reaction of multiply charged ions at high mass-to-charge ratios were explored with a low frequency quadrupole mass spectrometer. This…”
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Observation and implications of high mass-to-charge ratio ions from electrospray ionization mass spectrometry by Winger, Brian E., Light-Wahl, Karen J., Ogorzalek Loo, Rachel R., Udseth, Harold R., Smith, Richard D.

“…High mass-to-charge ratio ions (> 4000) from electrospray ionization (ESI) have been observed for several proteins, including bovine cytochrome c ( M r 12,231)…”
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Probing qualitative conformation differences of multiply protonated gas-phase proteins via hydrogen/deuterium isotopic exchange with water-d2 by Winger, B. E, Light-Wahl, K. J, Rockwood, A. L, Smith, R. D

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Differentiation of Protonated Aromatic Regioisomers Related to Lignin by Reactions with Trimethylborate in a Fourier Transform Ion Cyclotron Resonance Mass Spectrometer by Somuramasami, Jayalakshmi, Duan, Penggao, Amundson, Lucas M., Archibold, Enada, Winger, Brian E., Kenttämaa, Hilkka I.

“…Several lignin model compounds were examined to test whether gas-phase ion–molecule reactions of trimethylborate (TMB) in a FTICR can be used to differentiate…”
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The First Total Synthesis of Lipid II:  The Final Monomeric Intermediate in Bacterial Cell Wall Biosynthesis by VanNieuwenhze, Michael S, Mauldin, Scott C, Zia-Ebrahimi, Mohammad, Winger, Brian E, Hornback, William J, Saha, Shankar L, Aikins, James A, Blaszczak, Larry C

“…Bacterial peptidoglycan is composed of a network of β-[1,4]-linked glyan strands that are cross-linked through pendant peptide chains. The final product, the…”
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Ion−Molecule Reactions for the Characterization of Polyols and Polyol Mixtures by ESI/FT-ICR Mass Spectrometry by Watkins, Michael A, Winger, Brian E, Shea, Ryan C, Kenttämaa, Hilkka I

“…A mass spectrometric method is described for the identification and counting of hydroxyl groups in an analyte. Analytes introduced into a FT-ICR mass…”
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High-nuclearity close-packed palladium-nickel carbonyl phosphine clusters: heteropalladium by Kawano, M, Bacon, J W, Campana, C F, Winger, B E, Dudek, J D, Sirchio, S A, Scruggs, S L, Geiser, U, Dahl, L F

“…[Pd(16)Ni(4)(CO)(22)(PPh(3))(4)](2)(-) (1) and [Pd(33)Ni(9)(CO)(41)(PPh(3))(6)](4)(-) (2) were obtained as the two major products from the reduction of…”
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Ion−Molecule Reactions for Mass Spectrometric Identification of Functional Groups in Protonated Oxygen-Containing Monofunctional Compounds by Watkins, Michael A, Price, Jason M, Winger, Brian E, Kenttämaa, Hilkka I

“…Protonated oxygen-containing monofunctional compounds react with selected methoxyborane reagents by proton transfer followed by nucleophilic substitution of…”
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Compound Screening for the Presence of the Primary N-Oxide Functionality via Ion−Molecule Reactions in a Mass Spectrometer by Watkins, Michael A, WeWora, Danielle V, Li, Sen, Winger, Brian E, Kenttämaa, Hilkka I

“…A mass spectrometry method is presented for the identification of compounds that contain the primary N-oxide functional group. This method utilizes a gas-phase…”
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High-nuclearity close-packed palladium-nickel carbonyl phosphine clusters : hesteropalladium [Pd{sub 16}Ni{sub 4}(CO){sub 22}(PPh{sub 3}){sub 4]{sup 2-} and [Pd{sub 33}Ni{sub 9}(CO){sub 41}(PPh{sub 3}){sub 6}]{sup 4-} containing Pseudo-T{sub d} ccp Pd{sub 16}Ni{sub 4} and Pseudo-D{sub 3h} hcp Pd{sub 33}Ni{sub 9} cores by Kawano, M., Bacon, J. W., Campana, C. F., Winger, B. E., Dudek, J. D., Sirchio, S. A., Scruggs, S. L., Geiser, U., Dahl, L. F., Univ. of Wisconsin at Madison, Bruker Analytical X-Ray Instruments, Finnigan FT /MS Corp

“…[Pd{sub 16}Ni{sub 4}(CO){sub 22}(PPh{sub 3}){sub 4}]{sup 2-} (1) and [Pd{sub 33}Ni{sub 9}(CO){sub 41}(PPh{sub 3}){sub 6}]{sup 4-} (2) were obtained as the two…”
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High-resolution accurate mass measurements of biomolecules using a new electrospray ionization ion cyclotron resonance mass spectrometer: Electrospray ionization by WINGER, B. E, HOFSTADLER, S. A, BRUCE, J. E, UDSETH, H. R, SMITH, R. D

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