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In the present study the original Tessier sequential extraction method has been applied for metal fractionation in sewage sludge samples collected from an urban wastewater treatment plant and from one domestic olive oil factory. The results obtained by this conventional method were compared with those estimated from direct microwave single extractions, in order to reduce the conventional treatment...
The three-stage sequential extraction procedure, proposed by the European Community Bureau of Reference (BCR), has been applied for speciation of copper, chromium, nickel, lead and zinc in a sludge sample collected from an urban wastewater treatment plant. The conventional BCR sequential extraction method has been modified, in each stage, applying ultrasonic energy by means of a probe (handling at...
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