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TXRF analysis of soils and sediments to assess environmental contamination |
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| Authors: | Fabjola Bilo Laura Borgese Davide Cazzago Annalisa Zacco Elza Bontempi Rita Guarneri Marco Bernardello Silvia Attuati Pranvera Lazo Laura E Depero |
| Institution: | 1. Dipartimento di Ingegneria Meccanica e Industriale, Università di Brescia, via Branze 38, 25123, Brescia, Italy 2. ARPA Lombardia settore laboratory U.O. Laboratorio di Brescia, via Cantore 20, 25128, Brescia, Italy 3. Department of Analytical Chemistry, Faculty of Natural Science, University of Tirana, Bulevardi Zogu i Pare, Tirana, Albania |
| Abstract: | Total reflection x-ray fluorescence spectroscopy (TXRF) is proposed for the elemental chemical analysis of crustal environmental samples, such as sediments and soils. A comparative study of TXRF with respect to flame atomic absorption spectroscopy and inductively coupled plasma optical emission spectroscopy was performed. Microwave acid digestion and suspension preparation methods are evaluated. A good agreement was found among the results obtained with different spectroscopic techniques and sample preparation methods for Cr, Mn, Fe, Ni, Cu, and Zn. We demonstrated that TXRF is suitable for the assessment of environmental contamination phenomena, even if the errors for Pb, As, V, and Ba are ingent. |
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