CHED 853 |
| Christopher E. Carrig and Stephen K. O'Shea. |
| The concentration of nitrite ion has risen in the aquatic environment due to the increased application of nitrate and ammonium agricultural fertilizers. Nitrite ion has contaminated household drinking water in a number of communities to toxic levels. Excess nitrite ion in the blood can cause the medical condition methemoglobinemia. This research investigated the formation of Fe (II) nitrosyl adduct as a model of the less studied "free" or non-protein-bound iron in biological fluids. The rate of reaction of nitrite ion with varying precomplexed iron (III) center in the presence of triphenylphosphine was followed in situ by uv/vis spectroscopy. The series of nitrogen based ligands used were cyclam, pentamine, tetramine, triamine diamine and dipyridyl. This research shows a relationship between the ease of reduction of the ligated Fe (III) and the pseudo first order kinetics for the formation the iron (II) nitrosyl adduct. |
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Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |