Artículo
Rainwater analysis by synchrotron radiation-total reflection X-ray fluorescence
Lopez, Maria Laura
; Ceppi, Sergio Andres
; Asar, María Lila
; Burgesser, Rodrigo Exequiel
; Avila, Eldo Edgardo
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Fecha de publicación:
11/2015
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Spectrochimica Acta Part B: Atomic Spectroscopy
ISSN:
0584-8547
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Total reflection X-ray fluorescence analysis excited with synchrotron radiation was used to quantify the elemental concentration of rainwater in Córdoba, Argentina. Standard solutions with gallium as internal standard were prepared for the calibration curves. Rainwater samples of 5 μl were added to an acrylic reflector, allowed to dry, and analyzed for 200 s measuring time. The elemental concentrations of As, Ca, Co, Cr, Cu, Fe, K, Mn, Ni, Pb, S, Sr, V, and Zn were determined. The electrical conductivity, pH, and elemental concentrations were compared to data previously reported for the soluble fraction of rainwater at different sites. A factor analysis was performed in order to determine the sources that contributed to the elemental concentration in rainwater. Anthropogenic sources were identified as traffic pollution, vehicular emissions, and metallurgical factories. The quality of rainwater was analyzed by comparing the concentrations of all the elements in rainwater samples with the WHO guideline values for drinking water. The results show the need to control the atmospheric emissions in order to preserve the quality of rainwater. SR-TXRF analysis of chemical composition of rainwater in Córdoba represents the very first contribution in the region to the knowledge of the concentration of trace metals in the soluble fraction of rainwater. These data are scarce, especially in the Southern Hemisphere.
Palabras clave:
Elemental Composition
,
Rainwater
,
Sources
,
Sr-Txrf
,
Trace Metals
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Lopez, Maria Laura; Ceppi, Sergio Andres; Asar, María Lila; Burgesser, Rodrigo Exequiel; Avila, Eldo Edgardo; Rainwater analysis by synchrotron radiation-total reflection X-ray fluorescence; Pergamon-Elsevier Science Ltd; Spectrochimica Acta Part B: Atomic Spectroscopy; 113; 11-2015; 100-105
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