Topic
Nitrite
About: Nitrite is a research topic. Over the lifetime, 15425 publications have been published within this topic receiving 484581 citations.
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TL;DR: The results are not only relevant to natural variations in N15 relative to N14 but should be seriously considered during N15 tracer studies in soils.
Abstract: The abundance of N15 relative to N14 is significantly altered during experiments in vitro in which nitrate and nitrite are microbiologically reduced to nitrogen gas. In all studies to date, N14O3-and N14O2-species have been preferentially reduced. This selectivity has a complex dependence on conditions in the medium. The results are not only relevant to natural variations in N15 relative to N14 but should be seriously considered during N15 tracer studies in soils.
117 citations
TL;DR: Positive correlation is found between the levels of N-nitrosopiperidine (NPIP),N-nitrosohydroxyproline (NHPRO), N-Nitrosoproline (NPRO) and N- Nitroso-2-methyl-thiazolidine-4-carboxylic acid (NTCA) and the amount of nitrite added to cooked pork sausages.
117 citations
TL;DR: For the quantification of nitrite and nitrate, the stable metabolites of L-arginine-derived nitric oxide (NO) in human urine and plasma, a gas chromatographic-mass spectrometric (GC-MS) method was developed in which [15N]nitrite and [15 N]nitrate were used as internal standards.
117 citations
TL;DR: Protein film voltammetry results suggest a common site for reduction of all three substrates as axial ligands to the lysine-coordinated NrfA heme rather than nonspecific NO· reduction at one of the four His-His coordinated hemes also present in each NRFA subunit.
117 citations
TL;DR: In this article, the electrochemical reduction of nitrite and nitrate in alkaline solution has been studied on glassy carbon electrodes modified with phthalocyanine complexes of Mn, Fe, Co, Ni, Cu and Zn.
Abstract: The electrochemical reduction of nitrite and nitrate in alkaline solution has been studied on glassy carbon electrodes modified with phthalocyanine complexes of Mn, Fe, Co, Ni, Cu and Zn (MnPc, FePc, CoPc, NiPc, CuPc and ZnPc, respectively, and Pc(-2) is phthalocyanine dianion). Voltammetry shows that the reduction of nitrite occurs at potentials slightly less negative than for nitrate reduction. The MPc complexes lower the overpotential for the reduction of nitrite and nitrate as follows: CuPc > FePc > NiPc > CoPc > MnPc > ZnPc > glassy carbon electrode. The main product for the reduction of nitrite and nitrate is ammonia, with high yields of ammonia being obtained, depending on the choices of the electrolysis potential and MPc complex.
117 citations