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Chromogenic Complexes and Selective Preconcentration of Fe(III) and Cu(II) by Hydroxynaphthoyl-1,4,7,10-tetraazacyclododecane Derivatives

Skwierawska A., Paluszkiewicz E.

Polish Journal of Chemistry

2008

Vol. 82, nr 6

1219-1229

The coordination properties to ward Cu(II) and Fe(III) of 1-N-(1'-hydroxy- 2c- naphthoyl)-1,4,7,10-tetraazacyclododecane and 1,7-bis-N,N-(1c- hydroxy-2c- naphthoyl)-1,4,7,10-tetraazacyclododecane have been studied by means of UV-Vis spectroscopy. The stability constants of copper and iron complexes with those compounds were determined. Synthesis of modified silica gels was presented. Selective preconcentration of Cu(II) and Fe(III) on modified stationary phases was investigated.