John M. Ballard

Sequence analysis of oligopeptides by secondary ion/collision activated dissociation mass spectrometry

Donald F. Hunt, W. M. Bone, Jeffrey Shabanowitz et al. · Analytical Chemistry · 1981 · 137 citations

Biological Mass Spectrometry, Altmetric Attention Score, Peptide Science +23

Sequence analysis of polypeptides by collision activated dissociation on a triple quadrupole mass spectrometer

Donald F. Hunt, Alexander M. Buko, John M. Ballard et al. · Journal of Mass Spectrometry · 1981 · 90 citations

Thermospray ionization and tandem mass spectrometry of dyes

John M. Ballard, Leon D. Betowski · Organic Mass Spectrometry · 1986 · 50 citations

Chemical Engineering, Chemical Measurement, Negative Ionization +14

Degradation of vitamin D3 in a stressed formulation: The identification of esters of vitamin D3 formed by a transesterification with triglycerides

John M. Ballard, Eric D. Nelson, Randal A. Seburg · Journal of Pharmaceutical and Biomedical Analysis · 2006 · 47 citations

Food Chemistry, Lipid Analysis, Stressed Formulation +6

Photosensitized degradation of losartan potassium in an extemporaneous suspension formulation

Randal A. Seburg, John M. Ballard, Tsang‐Lin Hwang et al. · Journal of Pharmaceutical and Biomedical Analysis · 2006 · 47 citations

Food Chemistry, Chemical Engineering, Photochemistry +5