Liquid chromatographic separation of aminoglycosides with pulsed amperometric detection

作者: John A. Polta , Dennic C. Johnson , Kurt E. Merkel

DOI: 10.1016/S0021-9673(01)81339-X

关键词: ReagentElectrolytePolystyreneChromatographyColumn chromatographySodium hydroxideChromatographic separationNebramycinChemistryAmperometry

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).

参考文章(7)
Scott Hughes, Dennis C Johnson, Triple-pulse amperometric detection of carbohydrates after chromatographic separation Analytica Chimica Acta. ,vol. 149, pp. 1- 10 ,(1983) , 10.1016/S0003-2670(00)83155-4
Scott Hughes, Dennis C. Johnson, High-performance liquid chromatographic separation with triple-pulse amperometric detection of carbohydrates in beverages Journal of Agricultural and Food Chemistry. ,vol. 30, pp. 712- 714 ,(1982) , 10.1021/JF00112A022
J. A. Polta, D. C. Johnson, The Direct Electrochemical Detection of Amino Acids at a Platinum Electrode in an Alkaline Chromatographic Effluent Journal of Liquid Chromatography & Related Technologies. ,vol. 6, pp. 1727- 1743 ,(1983) , 10.1080/01483918308064887
D.S. Austin, J.A. Polta, T.Z. Polta, A.P.-C. Tang, T.D. Cabelka, D.C. Johnson, Electrocatalysis at platinum electrodes for anodic electoanalysis Journal of Electroanalytical Chemistry. ,vol. 168, pp. 227- 248 ,(1984) , 10.1016/0368-1874(84)87101-4
K. F. KOCH, K. E. MERKEL, S. C. O'CONNOR, J. L. OCCOLOWITZ, J. W. PASCHAL, D. E. DORMAN, STRUCTURES OF SOME OF THE MINOR AMINOGLYCOSIDE FACTORS OF THE NEBRAMYCIN FERMENTATION Journal of Organic Chemistry. ,vol. 43, pp. 1430- 1434 ,(1978) , 10.1002/CHIN.197834336