R
R.Reid Townsend
Researcher at Johns Hopkins University
Publications - 10
Citations - 1586
R.Reid Townsend is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Mass spectrometry & High-performance liquid chromatography. The author has an hindex of 10, co-authored 10 publications receiving 1552 citations.
Papers
More filters
Journal ArticleDOI
Monosaccharide analysis of glycoconjugates by anion exchange chromatography with pulsed amperometric detection.
TL;DR: The method of anion exchange chromatography followed by pulsed amperometric detection with AE-PAD has been applied to the compositional analysis of glycoconjugates and approximately one less residue of Man than predicted was determined.
Journal ArticleDOI
Binding of synthetic oligosaccharides to the hepatic Gal/GalNAc lectin. Dependence on fine structural features.
Yuan C. Lee,R.Reid Townsend,Mark R. Hardy,Jörgen Lönngren,Jan Arnarp,Martin Haraldsson,H Lönn +6 more
TL;DR: It was found that the number of Gal residues/cluster and their branching mode are major determinants of binding affinity of ligands to the hepatic lectin on the surface of hepatocytes.
Journal ArticleDOI
High-performance anion-exchange chromatography of oligosaccharides using pellicular resins and pulsed amperometric detection.
TL;DR: High-performance liquid chromatography using pellicular quaternary amine-bonded resins was used to separate a variety of neutral, sialylated, and phosphorylated oligosaccharide mixtures using electrochemical response, and complete separation of the parent neutral structures was obtained.
Journal ArticleDOI
Separation of branched sialylated oligosaccharides using high-pH anion-exchange chromatography with pulsed amperometric detection.
TL;DR: Ten characterized sialylated oligosaccharides from bovine fetuin were chromatographed using high-performance anion-exchange chromatography with pulsed amperometric detection and the relative molar electrochemical responses for di, tri, tetra, and pentasialylation oligosACcharides were found to be similar.
Journal ArticleDOI
Adaptation of a thermospray liquid chromatography/mass spectrometry interface for use with alkaline anion exchange liquid chromatography of carbohydrates.
Richard C. Simpson,Catherine Fenselau,Mark R. Hardy,R.Reid Townsend,Yuan C. Lee,Robert J. Cotter +5 more
TL;DR: An interface is described that allows the direct coupling of high-performance alkaline anion exchange liquid chromatography with thermospray mass spectrometry, and sensitivity studies show minimum detection limits for the test compounds to be in the microgram range.