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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/41224

    Título
    Development of a dispersive liquid-liquid microextraction coupled with magnetic dispersive microsolid phase extraction for determination of triazines in wastewater samples
    Autor
    Aguilar Arteaga, Karina
    Hernández Mera, Chintia
    Díaz Batalla, Luis
    Castañeda Ovando, Araceli
    Cruz Pérez, Alida E.
    Barrado Esteban, EnriqueAutoridad UVA Orcid
    Carrillo Cárdenas, Manuel
    Año del Documento
    2020
    Editorial
    Spinger
    Descripción
    Producción Científica
    Documento Fuente
    230. K. Aguilar-Arteaga, C. Hernandez-Mera, L. Diaz-Batalla, A. Castañeda-Ovando, A. Cruz-Pérez; E. Barrado, M.A. Carrillo-Cardenas. Development of a dispersive liquid-liquid microextraction coupled with magnetic dispersive microsolid phase extraction for determination of triazines in wastewater samples ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 412 (2020) 1203–1213
    Abstract
    The combination of two microextraction techniques (dispersive liquid-liquid microextraction [DLLME] and magnetic dispersivemicrosolid phase extraction [MDMSPE]) was developed and reported for atrazine and simazine preconcentration from wastewatersamples. The proposal methodology involved the use of magnetite supports functionalized with different alkyl or phenyl groups. Themagnetic adsorbents were synthesized by the solvothermal methodassisted by microwave, characterized, and used in the samplepreconcentration of atrazine and simazine. The method validation included parameters such as the wastewater matrix effect, repeat-ability, and recovery. The analyte separation and quantification were performed by high-performance liquid chromatography withultraviolet detection (HPLC-DAD). Parameters, such as the polarity and mass of magnetic solids and pH, were evaluated to providebetter extraction performance. The highest recoveries (> 95%) were obtained with 50 mg of the phenyl group support (CS2) at pH 5,using 5 mL of the sample and carbon tetrachloride and methanol, as extraction and dispersive solvents, respectively. The lowest limitsof detection (LOD) achieved were 13.16 and 13.86 ng L−1, and the limits of quantification (LOQ) were 43.89 and 46.19 ng L−1forsimazine and atrazine, respectively, with repeatability (expressed as %RSD) below 5% in all cases. The developed method is simple,easy, and low cost for the analysis of two herbicides potentially dangerous for environmental and human health.
    Palabras Clave
    Coupled microextraction techniques.Magnetic adsorbents.Triazines.Dispersive liquid-liquid microextraction.Magnetic dispersive microsolid phase extraction
    ISSN
    1618-2642
    Revisión por pares
    SI
    DOI
    10.1007/s00216-019-02354-4
    Version del Editor
    https://link.springer.com/article/10.1007/s00216-019-02354-4
    Propietario de los Derechos
    Springer
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/41224
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    restrictedAccess
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