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Author: yamil simon
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1. Developing qualitative LC-MS methods for characterization of Vaccinium berry Standard Reference Materials
Published: 9/2/2012
Authors: Mark S Lowenthal, Melissa Meaney Phillips, Catherine A Rimmer, Paul A Rudnick, Yamil Simon, Stephen E Stein, Karen W Phinney
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911317

2. Effect of N-Terminal Glutamic Acid and Glutamine on Fragmentation of Peptide Ions
Published: 3/27/2010
Authors: Bhaskar Godugu, Pedatsur Neta, Yamil Simon, Stephen E Stein
Abstract: A prominent dissociation path for electrospray generated tryptic peptide ions is the dissociation of the peptide bond linking the second and third residues from the amino-terminus. The formation of the resulting b^d2^ and y^dn-2^ fragments has been r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905100

3. Electrospray Tandem Quadrupole Fragmentation of Quinolone Drugs and Related Ions. On the Reversibility of Water Loss from Protonated Molecules
Published: 11/30/2010
Authors: Pedatsur Neta, Bhaskar Godugu, Yuxue (Yuxue) Liang, Yamil Simon, Xiaoyu Yang, Stephen E Stein
Abstract: Selected reaction monitoring (SRM) of quinolone drugs showed1 different sensitivities in aqueous solution vs. biological extract. The authors suggested formation of two singly protonated ions with different behavior, one undergoing loss of H^d2^O and ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906110

4. Loss of 45 Da from a2 Ions and Preferential Loss of 48 Da from a2 Ions Containing Methionine in Peptide Ion Tandem Mass Spectra
Published: 1/29/2011
Authors: Yamil Simon, Pedatsur Neta, Xiaoyu Yang, Stephen E Stein
Abstract: While analyzing tandem mass spectra of tryptic tripeptides, intense unassigned peaks were observed, which correspond to a neutral loss of 45 Da from a^d2^ ions. From exact mass analysis this loss is ascribed to formamide (or NH^d3^+CO). Elimination o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906270

5. Metabolite Profiling of a NIST Standard Reference Material for Human Plasma (SRM 1950) ‹ GC/MS, LC/MS, NMR and Clinical Laboratory Analyses, Libraries and Web-based resources
Published: 10/22/2013
Authors: Yamil Simon, Mark S Lowenthal, Lisa Ervin Kilpatrick, Maureen L Sampson, Kelly H Telu, Paul A Rudnick, William Gary Mallard, Daniel W Bearden, Tracey Beth schock Schock, Dmitrii V Tchekhovskoi, Niksa Blonder, Xinjian Yan, Yuxue (Yuxue) Liang, Yufang Zheng, William E Wallace III, Pedatsur Neta, Karen W Phinney, Alan T. Remaley, Stephen E Stein
Abstract: Recent progress in metabolomics and the development of increasingly sensitive analytical techniques have renewed interest in global profiling, i.e., semi-quantitative monitoring of all chemical constituents of biological fluids. In this work, we have ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913835



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