PROBIEN   20416
INSTITUTO DE INVESTIGACION Y DESARROLLO EN INGENIERIA DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Application of SR-XRF methodologies to determine the biotargets of environmental pollutants
Autor/es:
GUILLERMINA A. BONGIOVANNI; PAULA A. LAMELA; VERÓNICA SOTOMAYOR; MARIANA N. MARDIROSIAN; CECILIA S. ROLDÁN; CARLOS A. PÉREZ; ROBERTO D. PÉREZ; CRISTIAN L. VODOPIVEZ; JULIO A. NAVONI
Lugar:
Campinas, Sao Paulo
Reunión:
Workshop; 24ª Reunião Anual de Usuários do Laboratório Nacional de Luz Síncrotron (RAU/LNLS ); 2014
Institución organizadora:
Laboratório Nacional de Luz Síncrotron
Resumen:
Arsenic (As) is an abundant toxic metalloid in the earth crust and it is naturally introduced in aquatic system by leaching from soil/rock (mainly volcanic ones) (Bundschuh et al., 2012). Thus, water is the major source of contamination and As can be bioaccumulated in the microorganisms, plant and animals, magnified in the food chain, thus threatening environmental health, including human health  (Arribére et al., 2010; Zhao et al., 2009; Pérez et al., 2006; Rubatto Birri et al., 2010). In the South Andean Range, the Southern Volcanic Zone of the Andes (SVZ) is the Quaternary volcanic area developed on the western margin of the Argentinean Patagonia (between Chile and Argentina). Furthermore, the Andes continue beyond Tierra del Fuego, under the sea, reappearing as islands and then emerge again as Antartandes, the great mountain chain of the Antarctic Peninsula. Despite the role that bioaccumulating species play in transporting contaminants through food webs, studies in Patagonia or Antarctic Peninsule are almost inexistent. The aim of this work was to determine arsenic biotarget by X-ray Fluorescence Spectrometry using Synchrotron radiation (SR-XRF) Light Laboratory (LNLS). Furthermore, this technology allowed us to determine the concentration of the elements of the Periodic Table of Elements from P (phosphorus) to Zr (zirconium).