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Original Articles

The Influence of Malic Acid, Phosphate Ion, and Urea on the Mobility of Metal Ions

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Pages 1969-1976 | Received 06 Feb 2003, Accepted 12 Mar 2003, Published online: 02 Jun 2007
 

Abstract

The interactions of malic acid, phosphate ion, and urea with metal ions (aluminum, copper, iron, lead, manganese, and mercury) at different pH values (3.7, 5.0, 7.0, and 8.5) were investigated using a model system simulating natural conditions. The system consists of the ascending paper chromatography of metals in the tap water or in the solution of malic acid and mixture of malic acid, urea, or phosphate ion as developer. The chromatographic results show that malic acid increases the mobilities of all examined metals except mercury.

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