0000000000309300

AUTHOR

Thomas Hennessy

showing 5 related works from this author

Die Charakteristika der Optimierung in einzelnen HPLC‐Modi

2006

ChemistryHPLC richtig optimiert
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Peptide mapping by reversed-phase high-performance liquid chromatography employing silica rod monoliths.

2003

In this paper, a general procedure is described for the generation of peptide maps of proteins with monolithic silica-based columns. The peptide fragments were obtained by tryptic digestion of various cytochrome c species with purification of the tryptic fragments achieved by reversed-phase high-performance liquid chromatographic methods. Peak assignment of the various peptides was based on evaluation of the biophysical properties of the individual peptides and via mass spectrometric identification. The performance of several different monolithic sorbents prepared as columns of identical cross-sectional dimensions were investigated as part of these peptide mapping studies and the data evalu…

chemistry.chemical_classificationElectrosprayMonolithic HPLC columnChromatographyChemistryOrganic ChemistryAnalytical chemistryCytochromes cPeptideGeneral MedicineReversed-phase chromatographyMass spectrometrySilicon DioxideBiochemistryHigh-performance liquid chromatographyPeptide MappingAnalytical ChemistryTrypsinSelectivityPeptide sequenceChromatography High Pressure LiquidJournal of chromatography. A
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A critical appraisal of capillary electrochromatography.

2002

Although still in its infancy, CEC promises some advantages over competitive techniques for separating charged analytes including biomolecules.

Capillary electrochromatographyCritical appraisalSpectrometry Mass Electrospray IonizationChemistryElectrophoresis CapillaryProteinsNanotechnologyEquipment DesignPeptidesChromatography High Pressure LiquidAnalytical ChemistryAnalytical chemistry
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On the nature of the forces controlling selectivity in the high performance capillary electrochromatographic separation of peptides

2003

In this minireview, the nature of the forces controlling selectivity in the high performance capillary electrochromatographic (HP-CEC) separation of peptides has been examined. For uncharged and charged peptides, a synergistic interplay occurs in HP-CEC systems between adsorptive/partitioning events and electrokinetically driven motion. Moreover, at high field strengths, both bulk electrophoretic migration and surface electrodiffusion occur. Thus, the migration behavior of peptides in different HP-CEC systems can be rationalized in terms of the combined consequences of these various processes. Moreover, in HP-CEC, the buffer electrolyte interacts with both the peptide analytes and the sorbe…

OsmosisTime FactorsSorbentCapillary actionBiophysicsAnalytical chemistryPeptideContext (language use)ElectrolyteBiochemistryDiffusionBiomaterialsChromatography Micellar Electrokinetic CapillaryIonschemistry.chemical_classificationCapillary electrochromatographyOrganic ChemistryTemperatureElectrophoresis CapillaryGeneral MedicineHydrogen-Ion ConcentrationModels TheoreticalElectrophoresisChemical engineeringchemistrycardiovascular systemPeptidesSelectivityBiopolymers
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Characteristics of Optimization in Individual HPLC Modes: Sections 2.2– 2.5

2008

ChromatographyChemistryAnalytical chemistryHigh-performance liquid chromatography
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