Dear colleagues, We need to digest a series of sediment samples extracted from mangrove rivers in Florianópolis-SC, Brazil, for FAAS analysis of heavy metal pollution.
The objective is to evaluate the evolution of the level of these contaminants in these estuarine systems over the years regarding the impact of urbanization.
An efficient and reproducible digestion strategy is necessary to ensure greater representativeness to the results.
So thank you for suggestions and sharing.
Roberto,
A good place to start is the US EPA methods eg EPA Method 3050B: Acid Digestion of Sediments, Sludges, and Soils. Widely used for screening purposes and should be able to give you change over time.
https://www.epa.gov/homeland-security-research/epa-method-3050b-acid-digestion-sediments-sludges-and-soils
Roberto - you might also want to look at
Sediment Quality Assessment - A Practical Guide. Second Edition Edited by: Stuart Simpson, Graeme Batley. This has a broad range of assessment tools and is a great reference.
http://www.publish.csiro.au/book/7383/
Dear, Andrew. Thanks a lot for your very useful messages. I have accessed the mentioned publications and they are already helping us.
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