English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/18941
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Multielemental analysis of dried residue from metal-bearing waters by wavelength dispersive X-ray fluorescence spectrometry

AutorGonzález-Fernández, Oscar; Marguí, Eva ; Queralt Mitjans, Ignacio
Palabras claveWDXRF
Limit of detection
Mining sample
Fecha de publicación2009
CitaciónSpectrochimica Acta Part B: Atomic Spectroscopy 64(2): 184-190 (2009)
ResumenThe purpose of this work was evaluation of instrumental sensitivity and detection limits for determination of elemental composition (20 different elements ranging from Na to Pb) of liquid mining samples by using conventional Wavelength Dispersive X-Ray Fluorescence (WDXRF) instrumentation. Preconcentration of elements from liquid samples was performed by means of a simple dried residue process, and spectral evaluation was carried out by integration of the peak area (using WinQXAS/AXIL package software, International Atomic Energy Agency (IAEA)) instead of the common net peak line intensity traditionally used in conventional WDXRF systems. With the proposed methodology, the calculated detection limits were in the µg L− 1 range (from 0.005 to 0.1 mg L− 1 level depending on the element) in all cases, which is suitable for element determination in most liquid samples involved in environmental studies such as metal mining liquid effluents. The detection limits are also below the established limits of the TCLP 1311 (United States Environmental Protection Agency (US-EPA)) and DIN 38414-S4 (German Standard legislation) procedures, which are commonly used to evaluate the leaching of metals from landfill disposal. Accuracy of the procedure was confirmed by analysis, based on the German Standard Method DIN 3814-S4, of water lixiviates from three overbank sediment samples collected in two abandoned mining areas. The attained results were compared with those obtained by inductively coupled plasma (ICP) techniques, and acceptable agreement for elements with Z > 20 was found. This study highlights the possibility of using a simple methodology for analysis of liquid mining samples using the WDXRF technique, commonly employed for geochemical exploration of solid samples in environmental studies.
Versión del editorhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6THN-4V3HF9F-1&_user=145085&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000012098&_version=1&_urlVersion=0&_userid=145085&md5=109062036c74ddf424dc91894df81277
Aparece en las colecciones: (ICTJA) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.