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Abstract  

The electrochemical redox behavior of nitric acid was studied using a glassy carbon fiber column electrode system, and its reaction mechanism was suggested and confirmed in several ways. Electrochemical reactions in less than 2.0M nitric acid was not observed. However, in more than 2.0M nitric acid, the reduction of nitric acid to nitrous acid occurred and the reduction rate was slow so that the nitric acid solution had to be in contact with an electrode for a period of time long enough for an apparent reduction current of nitric acid to nitrous acid to be observed. The nitrous acid generated in more than 2.0M nitric acid was rapidly and easily reduced to nitric oxide by an autocatalytic reaction. Sulfamic acid was confirmed to be effective to destroy the nitrous acid. At least 0.05M sulfamic acid was necessary to scavenge the nitrous acid generated in 3.5M nitric acid.

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nitric oxide synthase. Circulation 107, 3118–3120 (2003) Zeiher A.M. Exercise and cardiovascular health: Get active to “AKTivate” your endothelial nitric oxide synthase

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Bagi Z, Koller A: Lack of nitric oxide mediation of flow-dependent arteriolar dilation in type I diabetes is restored by sepiapterin. J. Vasc. Res. 40, 47–57 (2003

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. Cardiol., 2012, 60 (18), 1778–1786. 16 Schulz, E., Jansen, T., Wenzel, P., et al.: Nitric oxide, tetrahydrobiopterin, oxidative stress and endothelial dysfunction in

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273 31 941 Bal-Price, A., Brown, G. C. (2001) Inflammatory neurodegeneration mediated by nitric oxide from-activated glia-inhibiting neuronal

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Madácsy, L., Velősy, B., Szepes, A., et al.: Effect of nitric oxide on gallbladder motility in patients with acalculous biliary pain: a cholescintigraphic study. Dig. Dis. Sci., 2002, 47 , 1975–1981. Szepes A

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Agrokémia és Talajtan
Authors: György Heltai, Attila Anton, Sándor Hoffmann, Tibor Szili-Kovács, Katalin Berecz, Györgyi Kampfl, Krisztina Kristóf, Erik Molnár, Márk Horváth, and Ágnes Bálint

609 640 Davidson, E. A. & Kingerlee, W. , 1997. Global inventory of emissions of nitric oxide from soils: A literature review. Nutrient Cycling in Agroecosystems

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. Biagini A. Clerico 2003 Endothelial nitric oxide synthase gene polymorphisms and risk of coronary artery disease Clin Chem

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Brenman, J. E., Chao, D. S., Xia, H., Aldape, K., Bredt, D. S. (1995) Nitric oxide synthase complexed with dystrophin and absent from skeletal muscle sarcolemma in Duchenne muscular dystrophy. Cell 82 , 743

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Clemens, M. G.: Nitric oxide in liver injury. Hepatology, 1999, 30 , 1–5. Clemens M. G. Nitric oxide in liver injury Hepatology

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