作者: John A. Polta , Dennic C. Johnson , Kurt E. Merkel
DOI: 10.1016/S0021-9673(01)81339-X
关键词: Reagent 、 Electrolyte 、 Polystyrene 、 Chromatography 、 Column chromatography 、 Sodium hydroxide 、 Chromatographic separation 、 Nebramycin 、 Chemistry 、 Amperometry
摘要: Abstract The absence of strong chromophoric groups in aminoglycoside antibiotics virtually eliminates the possibility their photometric detection analytical liquid chromatography Pulsed amperometric is described for sensitivity several nebramycin factors following separation on a neutral polystyrene column. alkaline eluent (0.25 M sodium hydroxide) appropriate as electrolyte electrochemical detection, and need post-column addition reagents avoided. use coupled fore-column illustrated on-line preconcentration when concentrations are below ca. 1 ppm 50-μl samples (i.e., 50 ng).