Fractionation of mercury in sediments during draining of Augusta (Italy) coastal area by modified Tessier method
| Autor: | Giuseppe Polizzotto, Santino Orecchio |
|---|---|
| Přispěvatelé: | Orecchio, S, Polizzotto, G |
| Rok vydání: | 2013 |
| Předmět: |
Environmental remediation
Augusta Analyser Remediation Sediment chemistry.chemical_element Fractionation Settore CHIM/12 - Chimica Dell'Ambiente E Dei Beni Culturali Analytical Chemistry Mercury (element) Sediments Certified reference materials chemistry Mercury(II) ion Environmental chemistry Environmental science Settore CHIM/01 - Chimica Analitica Sample preparation Spectroscopy |
| Zdroj: | Microchemical Journal. 110:452-457 |
| ISSN: | 0026-265X |
| DOI: | 10.1016/j.microc.2013.05.015 |
| Popis: | A modified Tessier method was applied to sediments dredged from Augusta (Italy) coastal area with the purpose of establishing the amount and the forms in which mercury is present in the different sediment fractions. The mercury fractionation was made by measuring the concentration of the metal ion on the solutions and directly on the sediment fractions obtained by sequential extraction. The measurements on the solutions as well as that on the solid fractions were carried out by using a Direct Mercury Analyser, DMA 80. This new instrument does not require sample preparation, and gives results comparable to those obtained with CV-AAS and ICP-MS and few minutes are necessary for each analysis. The quality of the experimental data together with the applicability of the technique to real samples was checked by analyzing certified reference materials (CRM) and some sediment samples collected from the coastal site during the research. The results of fractionation analysis were used as an assessment tool to establish the best remediation technique for removal of mercury from this polluted area. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect