Results 21 to 30 of about 5,640,070 (351)
Periodic current oscillations of zinc in nitric acid solutions [PDF]
Journal of the Serbian Chemical Society, 2008 This paper presents current oscillations of a Zn anode in solutions of nitric acid and potassium dichromate. The effects of the nitric acid concentration were investigated.
Crisan Florin, Salló Ervin
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MethodsX, 2021 A suitable optimized digestion method for lipsticks and powders for the analysis of As, Hg, Cd, Cr, Ni and Pb by Hydride Generation Atomic Absorption Spectrophotometry (HG-AAS), Cold Vapor Atomic Absorption Spectrophotometry (CV-AAS) and Flame Atomic ...
Devika Maharaj +3 more
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Journal of Engineering, 2003 An experimental investigation was conducted to study the various parameters affecting the production of oxalic acid by the action of concentrated nitric acid on carbohydrates. Two feedstocks were studied, viz., dates fruit and dates syrup.
Harith N. Al-Rawi +2 more
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Aquaculture Reports, 2021 Oysters are rich in nutrients and can be cultivated in oceans; therefore they have attracted considerable interest as a food source. In this study, we investigated the rapid analysis of multiple minerals in oysters using microwave decomposition combined ...
Tsuyoshi Yoda +2 more
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Evaluation of Acid Digestion Procedures to Estimate Mineral Contents in Materials from Animal Trials [PDF]
Asian-Australasian Journal of Animal Sciences, 2015 Rigorously standardized laboratory protocols are essential for meaningful comparison of data from multiple sites. Considering that interactions of minerals with organic matrices may vary depending on the material nature, there could be peculiar demands ...
M. N. N. Palma +3 more
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Electrochemical synthesis of nitric acid from air and ammonia through waste utilization
National Science Review, 2019 Commercial nitric acid (HNO3) and ammonia (NH3) are mostly produced through the Ostwald process and the Haber-Bosch process, respectively. However, high energy demand and enormous greenhouse gas accompy these processes.
Yuting Wang +4 more
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The Scientific World Journal, 2014 Maghemite (γ-Fe2O3) nanoparticles have been synthesized using a chemical coprecipitation method at different nitric acid concentrations as an oxidizing agent.
Irwan Nurdin +3 more
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Yankuang ceshi, 2018 BACKGROUND With advantages of small sample quantity, less acid, and low blank, high-pressure closed digestion-Inductively Coupled Plasma-Mass Spectrometry became the main method in the determination of rare earth elements.
WU Lei +5 more
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Ecotoxicology and Environmental Safety, 2021 The chemical composition in the precipitation is constantly changing, thus acid rain type is gradually changing from sulfuric type to mixed type and then nitric type.
Xinli Li +4 more
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Effect of Nitric Acid Modification on Characteristics and Adsorption Properties of Lignite
Processes, 2019 The objective of this research was to explore the changes of the pore structure and surface properties of nitric-modified lignite and base the adsorption performance on physical and chemical adsorbent characteristics.
Bo Huang +4 more
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