Accuracy Evaluation of Ultrasound Probe Sonication and Microwave-Assisted Extraction Systems for Rapid Single Extraction of Metals in Soils

Quijano Nieto, M. Angeles; García Salgado, Sara y García Casillas, David (2015). Accuracy Evaluation of Ultrasound Probe Sonication and Microwave-Assisted Extraction Systems for Rapid Single Extraction of Metals in Soils. En: "XX Reunión Nacional de la Sociedad Española de Química Analítica (SEQA 2015)", 1-3 de julio de 2015, Santiago de Compostela. ISBN 978-84-8408-867-7. p. 245.

Descripción

Título: Accuracy Evaluation of Ultrasound Probe Sonication and Microwave-Assisted Extraction Systems for Rapid Single Extraction of Metals in Soils
Autor/es:
  • Quijano Nieto, M. Angeles
  • García Salgado, Sara
  • García Casillas, David
Tipo de Documento: Ponencia en Congreso o Jornada (Otro)
Título del Evento: XX Reunión Nacional de la Sociedad Española de Química Analítica (SEQA 2015)
Fechas del Evento: 1-3 de julio de 2015
Lugar del Evento: Santiago de Compostela
Título del Libro: Libro de Actas. XX Reunión de la Sociedad Española de Química Analítica (SEQA 2015)
Fecha: Julio 2015
ISBN: 978-84-8408-867-7
Materias:
Escuela: E.T.S.I. Civil (UPM)
Departamento: Ingeniería Civil: Hidráulica y Ordenación Del Territorio
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The accumulation of metals in soils and sediments causes a potential risk to human health due to the transfer of these elements to other environmental compartments. However, metals are present in soils under different chemical forms or types of binding, so the total metal content is a poor indicator of their bioavailability, mobility or toxicity, since these properties basically depend on the chemical association of the different soil components. Therefore, the environmental impact of metalliferous soils is better assessed on the basis of the environmental accessibility of metals, i.e. the bioavailable forms for plants. In the present work, ultrasonic probe sonication (UPS) and microwave-assisted extraction (MAE) have been evaluated as alternatives to the conventional Standards, Measurements and Testing program (SM&T) procedures for single extraction of metals in soils, in order to reduce the extraction time and the consumption of samples and extracting agents. Optimization studies were carried out on the certified reference materials (CRMs) BCR 483 (Sewage sludge amended soil) and BCR 700 (Organic rich soil) for accuracy evaluation of the proposed methods. Extractable concentrations of Cd, Cr, Cu, Ni and Zn using 0.01 M calcium chloride (in BCR 483), and also of Pb with 0.43 M acetic acid and 0.05 M ethylenediaminetetraacetic acid at pH 7.0 (in both CRMs) were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES).

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Identificador DC: http://oa.upm.es/36961/
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Depositado por: Memoria Investigacion
Depositado el: 27 Mar 2017 15:25
Ultima Modificación: 28 Mar 2017 11:43
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