2-Amino-5-cyano-3-nitropyridin

Amino Acid Analysis by High-Performance Liquid Chromatography after Derivatization with 1-Fluoro-2,4-Dinitrophenyl-5-L-Alanine Amide (Marfey's Rea

Precolumn derivatization of amino acids followed by their resolution by reverse-phase high-performance liquid chromatography (RP-HPLC) is now the preferred method for quantitative amino acid analysis. The derivatization step introduces

Two Efficient Methods for the Conjugation of Smooth-Form Lipopolysaccharides with Probes Bearing Hydrazine or Amino Groups. II. LPS Activation with a

This chapter presents a conjugation method for coupling probes bearing hydrazine or primary amino groups to a lipopolysaccharide (LPS). LPS is modified by the activation of the hydroxyl groups present in its O-antigen moiety with 1-cyano

Characterization of Phosphopeptides Using a Combination of Immobilized Metal Ion Affinity Media and Direct Analysis by MALDI-TOF-MS

(or multiples of 80 Da) mass shifts in the MALDI-MS of the reaction mixture. Carboxypeptidase Y treatment of the affinity-bound phosphopeptides can also be used to cleave amino acids from the carboxyl terminus, with subsequent direct analysis of the enzymatic