Determination of soluble toxic arsenic species in alga samples by microwave-assisted extraction and high performance liquid chromatography-hydride generation-inductively coupled plasma-atomic emission spectroscopy

Garcia Salgado, Sara; Quijano Nieto, M. Angeles y Bonilla Simon, M. Milagros (2006). Determination of soluble toxic arsenic species in alga samples by microwave-assisted extraction and high performance liquid chromatography-hydride generation-inductively coupled plasma-atomic emission spectroscopy. "Journal of Chromatography A", v. 129 (n. 1); pp. 54-60. ISSN 0021-9673. https://doi.org/10.1016/j.chroma.2006.06.083.

Descripción

Título: Determination of soluble toxic arsenic species in alga samples by microwave-assisted extraction and high performance liquid chromatography-hydride generation-inductively coupled plasma-atomic emission spectroscopy
Autor/es:
  • Garcia Salgado, Sara
  • Quijano Nieto, M. Angeles
  • Bonilla Simon, M. Milagros
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Chromatography A
Fecha: Septiembre 2006
Volumen: 129
Materias:
Escuela: E.U.I.T. Obras Públicas (UPM) [antigua denominación]
Departamento: Ingeniería Civil: Hidráulica y Energética [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (358kB) | Vista Previa

Resumen

A microwave-based procedure for arsenic species extraction in alga samples (Sargassum fulvellum, Chlorella vulgaris, Hizikia fusiformis and Laminaria digitata) is described. Extraction time and temperature were tested in order to evaluate the extraction efficiency of the process. Arsenic compounds were extracted in 8 ml of deionised water at 90 °C for 5 min. The process was repeated three times. Soluble arsenic compounds extracted accounted for about 78–98% of total arsenic. The results were compared with those obtained in a previous work, where the extraction process was carried out by ultrasonic focussed probe for 30 s. Speciation studies were carried out by high performance liquid chromatography–hydride generation–inductively coupled plasma-atomic emission spectrometry (HPLC-HG-ICP-AES). The chromatographic method allowed us to separate As(III), As(V), monomethylarsonic acid and dimethylarsinic acid in less than 13 min. The chromatographic analysis of the samples allowed us to identify and quantify As(V) in Hizikia sample and Sargasso material, while the four arsenic species studied were found in Chlorella sample. In the case of Laminaria sample, none of these species was identified by HPLC-HG-ICP-AES. However, in the chromatographic analysis of this alga by HPLC-ICP-AES, an unknown arsenic species was detected.

Más información

ID de Registro: 9713
Identificador DC: http://oa.upm.es/9713/
Identificador OAI: oai:oa.upm.es:9713
Identificador DOI: 10.1016/j.chroma.2006.06.083
URL Oficial: http://www.sciencedirect.com/science/journal/00219673
Depositado por: Memoria Investigacion
Depositado el: 17 Nov 2011 10:19
Ultima Modificación: 20 Abr 2016 18:01
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM