F. Tafesse, N. Deppa
Jun 1, 2004
Citations
0
Influential Citations
10
Citations
Journal
Ecotoxicology and environmental safety
Abstract
Reactions of several metal ions and polymetallic complexes toward hydrolysis of 4-nitrophenyl phosphate (NPP) were investigated at 10(-3)M concentration in oil-in-water microemulsions and aqueous media. The reactions were monitored by measuring the absorbance of the nitrophenolate ion produced in the reaction aliquots with time. The order of effectiveness of the metal ions and polymetallic complexes at neutral pH toward hydrolysis of NPP was found to be Turnbull's Blue>magnetite>Fe(III)>Fe(II)>Co(II)>Ca(II)>Cu(II). The possible application of these systems for sites contaminated with chemical warfare agents such as organophosphates is discussed.