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- W1977976087 abstract "Solutions of N-nitrosamines, N-nitrosodimethylamine, N-nitrosodiethylamine, N-nitrosomorpholine and N-nitrosopyrrolidine in phosphate buffer (pH 7.4) were irradiated by ultraviolet (UV) light at room temperature. The N-nitrosamines were extensively degraded due to irradiation for 120 min in a time-dependent fashion as monitored by UV-absorption or high performance liquid chromatographic analysis. Carbon-centered radicals were generated from four N-nitrosamines during the short time irradiation of 10-60 s as monitored by electron spin resonance (ESR) technique using 5,5-dimethyl-1-pyrroline N-oxide and N-tert-butyl-alpha-phenylnitrone as spin traps. Nitric oxide (NO) was generated during the short time irradiation as monitored by ESR technique using cysteine-Fe(II) complex, N-methyl-D-glucamine dithiocarbamate and 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide. Significant amounts of nitrite (4-16%) from four N-nitrosamines and also a significant amount of nitrate (4%) was produced from N-nitrosodimethylamine during the irradiation time of 120 min. Released NO from the N-nitrosamines must be converted into nitrite through intermediary reactive nitrogen oxide species including nitrogen dioxide and dinitrogen trioxide in contact with dissolved oxygen." @default.
- W1977976087 created "2016-06-24" @default.
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- W1977976087 date "2001-01-01" @default.
- W1977976087 modified "2023-09-25" @default.
- W1977976087 title "Release of nitric oxide together with carbon-centered radicals from N-nitrosamines by ultraviolet light irradiation" @default.
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- W1977976087 doi "https://doi.org/10.1080/10715760100301301" @default.
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