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C. Whalley and A. Grant, “Assessment of the Phase Selectivity of the European-Community Bureau-of-Reference (bcr) Sequential Extraction Procedure for Metals in Sediment,” Analytical Chemical Act A, Vol. 291, No. 3, 1994, pp. 287-295.

has been cited by the following article:

• TITLE: Study of the Sediments of the Dam of Okpara (Benin): Physico-Chemical Characterization and Speciation of Iron and Manganese

  AUTHORS: Fidele Suanon, Biaou Dimon, Daouda Mama, A.Lyde Tominti

  KEYWORDS: Sediments; Iron, Manganese; Geochemical Phases; Pollution

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.5 No.7, July 4, 2013

  ABSTRACT: Iron and Manganese contents and parameters including pH, conductivity, and organic matter contents were determined in the sediments of the Okpara dam in Northern Benin. Fifteen samples were collected during a one-month period and analysed in laboratory using the method of sequential extraction of Tessier. The analyses indicated that sediments contained high concentrations in reducible fraction of Iron and relatively high contents of exchangeable fraction, acidhydrolysable fraction and residual fraction of Manganese. The findings of this study confirmed the hypotheses that the meal contents of the sediments were relatively high and varied according to the geochemical phases.