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  • Articles: DFG German National Licenses  (2)
  • 1975-1979  (2)
  • Chromatographie, Säulen  (1)
  • Ion-pair extraction  (1)
Source
  • Articles: DFG German National Licenses  (2)
Material
Years
  • 1975-1979  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    An HPLC fluorescence detection system for amines (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 11-14 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography ; Fluorescence ; Ion-pair extraction ; Amines ; Post-column reaction ; Auto-analyser ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A detection system is described which is based on fluorescent ion-pair formation between tertiary amine drugs and dimethoxyanthracene sulphonate. A dynamic micro-extraction principle is then used to isolate the ion-pairs from the excess reagent. The band broadening of this extraction detector was kept below 20% using standard auto-analyser equipment. With the enhanced selectivity and sensitivity of this approach it was possible to analyse chloropheniramine in urine at ppb concentrations using a pre-column clean-up trace enrichment step.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020106
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Derivatization in modern liquid chromatography (1975)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 277 (1975), S. 303-310 
    Details
    ISSN: 1618-2650
    Keywords: Chromatographie, Säulen ; Reaktions-Flüssigkeits-Chromatographie, Methoden, Anwendbarkeit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary Advantages and disadvantages of derivatization-liquid chromatography are discussed. Distinction is made between pre-column and post-column techniques. Ion-pair chromatography is classified as a special form of pre-column technique. Some background aspects are mentioned briefly. The usefulnes of reaction chromatography is demonstrated with practical examples in pharmaceutical, clinical and environmental analytical areas. Extension of this approach to mass spectroscopy is also included.
    Notes: Zusammenfassung Die Vor- und Nachteile der Reaktions-Flüssigkeits-Chromatographie werden diskutiert. Es wird zwischen Derivatisierungsverfahren vor und nach der Säule unterschieden. Ionenpaar-Chromatographie wird als eine besondere Form der Reaktions-Chromatographie vor der Säule betrachtet. Einige Grundlagenaspekte sind kurz erörtert. Die Anwendbarkeit dieser Methoden wird anhand pharmazeutischer, klinischer und umweltchemischer Analysenbeispiele vorgeführt. Möglichkeiten der Strukturaufklärung über eine Kombination der Reaktions-Chromatographie und der Massenspektroskopie sind erwähnt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00438286
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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