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![](./images/clear.gif) 1.- MULTIMETHOD STUDY OF THE DEGREE OF HUMIFICATION OF HUMIC SUBSTANCES EXTRACTED FROM DIFFERENT TROPICAL SOIL PROFILES IN BRAZIL'S AMAZONIAN REGION
ELSEVIER; AMSTERDAM; NLD; NETHERLANDS, 2005
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![](./images/clear.gif) 2.- Reduction capability of soil humic substances from the Rio Negro Basin, Brazil, towards Hg(II) studied by a multimethod approach and principal component analysis (PCA)
Elsevier; Amsterdam; NLD; Netherlands, 2007
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