Comparison of partial extraction reagents for assessing potential bioavailability of heavy metals in sediments
Brady, James P., Kinaev, Irina, Goonetilleke, Ashantha, & Ayoko, Godwin A. (2016) Comparison of partial extraction reagents for assessing potential bioavailability of heavy metals in sediments. Marine Pollution Bulletin, 106(1-2), pp. 329-334.
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Assessment of heavy metal bioavailability in sediments is complex because of the number of partial extraction methods available for the assessment and the general lack of certified reference materials. This study evaluates five different extraction methodologies to ascertain the relative strengths and weaknesses of each method. The results are then compared to previously published work to ascertain the most effective partial extraction technique, which was established to be dilute (0.75 – 1 M) nitric acid solutions. These results imply that single reagent; weak acid extractions provide a better assessment of potentially bioavailable metals than the chelating agents used in sequential extraction methods.
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|Item Type:||Journal Article|
|Keywords:||Heavy metals, partial extraction, sequential extraction, contamination|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Facilities:||Central Analytical Research Facility|
|Copyright Owner:||2016 Elsevier|
|Copyright Statement:||Licensed under the Creative Commons Attribution; Non-Commercial; No-Derivatives 4.0 International. DOI: 10.1016/j.marpolbul.2016.03.029|
|Deposited On:||16 May 2016 22:37|
|Last Modified:||22 May 2016 05:35|
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