Amines 4 Cyanogen Bromide 4 Dansyl Compounds 4 Horseradish Peroxidase 4 Hydrazines 4 Salmonella enterica 4 Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization 4 article 4 horseradish peroxidase 4 hydrazine 4 lipid A 4 Armoracia rusticana 2 Chemistry Techniques, Analytical 2 Chemistry, Analytical 2 Dansyl hydrazine 2 Electrophoresis 2 Electrophoresis, Polyacrylamide Gel 2 Horseradish peroxidase 2 Lipid A 2 Lipopolysaccharide conjugates 2 Molecular Probes 2 O Antigens 2 O antigen 2 Polyethylene Glycols 2 Polysaccharides, Bacterial 2 Spectrometry, Fluorescence 2 amine 2 amino acid 2 bacterium conjugation 2 biological activity 2