• español
  • English
  • Login
      • español
      • English
    • English 
      • español
      • English
    • Login
    View Item 
    •   riUAL Home
    • Repositorio de la Producción Científica de la Universidad de Almería
    • Departamento de Química y Física
    • Artículos de revista Dpto. Química y Física
    • View Item
    •   riUAL Home
    • Repositorio de la Producción Científica de la Universidad de Almería
    • Departamento de Química y Física
    • Artículos de revista Dpto. Química y Física
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Column-switching linked to large sample volumes to preconcentrate beta-blockers at trace levels in environmental water

    Files
    ManuscriptVersionFinal.pdf (525.9Kb)
    Identifiers
    URI: http://hdl.handle.net/10835/92
    ISSN: 0039-9140
    Services
    RISMendeley
    Share
    Stadistics
    View Usage Statistics
    Metadata
    Show full item record
    Author/s
    Gil García, María Dolores; Peñas Pedrosa, Beatriz; Martínez Galera, María
    Date
    2011
    Abstract
    This paper describes about an automated on-line enrichment method for the simultaneous determination of seven beta-blockers in river water using a short liquid chromatography column for preconcentration coupled with LC-DAD. The method performs the preconcentration of 30mL of river water samples (5% organic modifier) using a 50mm×4.6mm C18 column for enrichment and a 150mm×4.6mm C18 column for separation, allowing the determination of beta-blockers at trace levels in river water. The analytical procedure was developed by optimizing the breakthrough parameters (flow rate, time of preconcentration and percentage of organic modifier added to the sample) in order to achieve the maximum sensitivity, and by optimizing the mobile phase (composition and flow rate) to get adequate separation of the components in a reasonable analysis time. Under the optimized conditions, the method was validated with respect to linearity, precision, limits of detection, limits of quantification and accuracy. Det...
    Palabra/s clave
    Beta-blockers
    Environmental water
    On-line SPE-LC-LC-DAD
    Standard addition calibration
    Collections
    • Artículos de revista Dpto. Química y Física [4]

    Browse

    All of riUALCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    Statistics

    View Usage Statistics

    Of interest

    About the RepositoryCopyright FAQsSelf-archiving instructions

    Autoarchivo policies of publishers

    Indexed in

    Contact Us
    Contact Us