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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimir: 0018-8166
ISSN On-line: 1943-5991

Volumes:
Volume 55, 2019 Volume 54, 2018 Volume 53, 2017 Volume 52, 2016 Volume 51, 2015 Volume 50, 2014 Volume 49, 2013 Volume 48, 2012 Volume 47, 2011 Volume 46, 2010 Volume 45, 2009 Volume 44, 2008 Volume 43, 2007 Volume 42, 2006 Volume 41, 2005 Volume 40, 2004 Volume 39, 2003 Volume 38, 2002 Volume 37, 2001 Volume 36, 2000 Volume 35, 1999 Volume 34, 1998

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v35.i1.70
pages 61-69

Organic Complex Compounds of Iron and Chromium and Their Chemical Nature in the Dnieper Reservoirs

N. I. Chubar'
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine

RESUMO

The distribution of iron and chromium among complexes with dissolved organic compounds varying in chemical nature (anionic, cationic, and neutral) and in molecular weight was analyzed in the Dnieper reservoirs. Iron and chromium formed complexes with humic compounds, protein-like compounds, and carbohydrates. Humic compounds (fulvic acids predominantly) played the major role in binding both metals in all Dnieper reservoirs. The spatial and temporal variations in the distribution of iron and chromium complexes varying in chemical nature was studied in the Kiev reservoir. The major proportions of iron and chromium formed complexes with humic compounds in spring, with protein-like compounds in summer, and with carbohydrates in winter.


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