Quan-Long Pu

Publications

Characterization of the trimethyl silyl derivatives of 6-Amino-3-methyl-1,4-diphenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile and its analogs by electron ionization gas chromatography/mass spectrometry

June 27, 2025

Author(s)

Quan-Long Pu, Yufang Zheng, Edward P. Erisman

Pyranopyrazoles have broad applications as pharmaceutical ingredients and biodegradable agrochemicals. The most extensively investigated are the pyrano[2,3 c

Consecutive Neutral Losses of H₂O and C₂H₄O From N-Terminal Thr-Thr and Thr-Ser in Collision-Induced Dissociation of Protonated Peptides. Position Dependent Water Loss From Single Thr or Ser.

November 1, 2007

Author(s)

Pedatsur Neta, Quan-Long Pu, Xiaoyu Yang, Stephen E. Stein

A two-step neutral loss from tryptic peptides containing Thr-Thr or Thr-Ser at their N-terminus is studied. This process also requires a mobile proton (i.e

Dehydration vs. Deamination of N-Terminal Glutamine in Collision-Induced Dissociation of Protonated Peptide Ions

August 11, 2006

Author(s)

Pedatsur Neta, Quan-Long Pu, Lisa E. Kilpatrick, Xiaoyu Yang, Stephen E. Stein

Some of the most prominent neutral losses in peptide ion fragmentation are the loss of ammonia and water from N-terminal glutamine. These processes are studied

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Quan-Long Pu (Fed)

Publications