Download or read book The Kjeldahl Method for Organic Nitrogen written by R. B. Bradstreet and published by Elsevier. This book was released on 2013-10-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Kjeldahl Method for Organic Nitrogen volume presents a broad and comprehensive survey of the method as applied to natural products and organic nitrogen compounds. The quantitative determination of an element as widely distributed as nitrogen is of great importance, and the truth of this is borne out by the tremendous amount of literature published throughout the years. The analysis of nitrogen can be divided into two classes: inorganic and organic. This book is concerned only with organic nitrogen compounds, and specifically their determination by the Kjeldahl method. The book opens with a chapter on the historical background and the work leading to the evolution of the method. This is followed by separate chapters that discuss each of the several divisions of the method, e.g., salt addition, reduction, oxidation, catalysts, distillation.
Download or read book The Kjeldahl Method for Organic Nitrogen written by Raymond B. Bradstreet and published by . This book was released on 1965 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The kjeldahl digestion. Digestion procedure. Distillation and determination of nitrogen.
Download or read book On the Determination of the Organic Nitrogen in Natural Waters by the Kjeldahl Method written by Thomas Messinger Drown and published by . This book was released on 1889 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Improved Semi micro Kjeldahl Method for Estimation of Organic Nitrogen written by James Alexander Scarrow and published by . This book was released on 1933 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kjeldahl Method 140 Years written by Jaime Aguirre and published by Jaime Aguirre. This book was released on 2022-02-02 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the Kjeldahl method for nitrogen determination.
Download or read book Soil Nitrogen written by Bartholomerv W V. and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semimicro Quantitative Organic Analysis written by E. P. Clark and published by Elsevier. This book was released on 2013-10-22 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semimicro Quantitative Organic Analysis focuses on the analytical phase of research and chemistry of natural products, as well as analysis of gases and methods used in identifying iodine and other substances. The manuscript first offers information on the determination of carbon, hydrogen, and nitrogen, and the use of Kjeldahl and Dumas methods in the determination of nitrogen. The book also ponders on the determination of halogens, including the use of ethanolamine-sodium, Carius, and sodium peroxide fusion methods and the Liepert volumetric method for iodine. The publication discusses the determination of sulfur and phosphorus, as well as the alkali-nitrate fusion method for converting organic phosphorus to orthophosphate and Woy's procedure for weighing phosphorus as phosphomolybdic anhydride. The text also reviews the determination of methoxyl and ethoxyl and acetyl groups; determination of neutralization equivalent and molecular weights; and determination of volatile fatty acids. The manuscript is a dependable reference for readers interested in the chemistry of natural products.
Download or read book Kjeldahl Method for Nitrogen Determination written by J. Benton Jones (Jr.) and published by . This book was released on 1991 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Kjeldahl Method written by Jaime Aguirre and published by Independently Published. This book was released on 2024-01-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1883 Johan Kjeldahl developed a system for nitrogen determination in organic substances. Soon after its publication numerous modifications and improvements were made by different chemists. Throughout the years, thousands of different papers have been written on the process, including suggested variations, upgrades, criticisms, and reviews, and many types of devices have been designed for both the digestion and the distillation stages. Since its introduction in 1883, the Kjeldahl method has been an essential analytical tool for nitrogen determination in research, academic and industrial laboratories.
Download or read book Nitrate Handbook written by Christos Tsadilas and published by CRC Press. This book was released on 2022-01-03 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrate Handbook: Environmental, Agricultural, and Health Effects provides an overview of the entire nitrate cycle and the processes influencing nitrate transformation. It clearly identifies the role of nitrate as an essential nutrient in plant growth, food preservation, and human health. Using the most up-to-date knowledge and research, this handbook illustrates how the steadily increasing human population and demand for food, which results in higher amounts of nitrate needed by soils, makes new regulations on the management and usage of nitrates a high priority. A detailed explanation concerning the discrepancies between the public’s perception of nitrate’s harm versus the reality of its human health benefits is given via a balanced and evidence-based approach. All questions pertaining to the influences of nitrate and its derivatives on plant physiology and human health are explored in depth. This comprehensive resource with contributions from distinguished researches in the field is a must-have for professionals and students who study and work with nitrates. Features: Includes in depth discussion on the wide spectrum of nitrate present in the environment. Focuses on the progress made on nitrate research and its importance. Answers all questions about nitrate and its derivatives’ influences on plant physiology and human health. Enables decision makers and public authorities to manage social concerns Compiles in one resource the findings of many distinguished researchers in the field.
Download or read book Anaerobic Digestion Model No 1 ADM1 written by IWA Task Group for Mathematical Modelling of Anaerobic Digestion Processes and published by IWA Publishing. This book was released on 2002-02-01 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IWA Task Group for Mathematical Modelling of Anaerobic Digestion Processes was created with the aim to produce a generic model and common platform for dynamic simulations of a variety of anaerobic processes. This book presents the outcome of this undertaking and is the result of four years collaborative work by a number of international experts from various fields of anaerobic process technology. The purpose of this approach is to provide a unified basis for anaerobic digestion modelling. It is hoped this will promote increased application of modelling and simulation as a tool for research, design, operation and optimisation of anaerobic processes worldwide. This model was developed on the basis of the extensive but often disparate work in modelling and simulation of anaerobic digestion systems over the last twenty years. In developing ADM1, the Task Group have tried to establish common nomenclature, units and model structure, consistent with existing anaerobic modelling literature and the popular activated sludge models (See Activated Sludge Models ASM1, ASM2, ASM2d and ASM3, IWA Publishing, 2000, ISBN: 1900222248). As such, it is intended to promote widespread application of simulation from domestic (wastewater and sludge) treatment systems to specialised industrial applications. Outputs from the model include common process variables such gas flow and composition, pH, separate organic acids, and ammonium. The structure has been devised to encourage specific extensions or modifications where required, but still maintain a common platform. During development the model has been successfully tested on a range of systems from full-scale waste sludge digestion to laboratory-scale thermophilic high-rate UASB reactors. The model structure is presented in a readily applicable matrix format for implementation in many available differential equation solvers. It is expected that the model will be available as part of commercial wastewater simulation packages. ADM1 will be a valuable information source for practising engineers working in water treatment (both domestic and industrial) as well as academic researchers and students in Environmental Engineering and Science, Civil and Sanitary Engineering, Biotechnology, and Chemical and Process Engineering departments. Contents Introduction Nomenclature, State Variables and Expressions Biochemical Processes Physicochemical Processes Model Implementation in a Single Stage CSTR Suggested Biochemical Parameter Values, Sensitivity and Estimation Conclusions References Appendix A: Review of Parameters Appendix B: Supplementary Matrix Information Appendix C: Integration with the ASM Appendix D: Estimating Stoichiometric Coefficients for Fermentation Scientific & Technical Report No.13
Download or read book Biochar Application written by T. Komang Ralebitso-Senior and published by Elsevier. This book was released on 2016-05-07 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biochar Application: Essential Soil Microbial Ecology outlines the cutting-edge research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics, as well as the microbial ecology of biochar application to soil, the use of different phyto-chemical analyses, possibilities for future research, and recommendations for climate change policy. Biochar, or charcoal produced from plant matter and applied to soil, has become increasingly recognized as having the potential to address multiple contemporary concerns, such as agricultural productivity and contaminated ecosystem amelioration, primarily by removing carbon dioxide from the atmosphere and improving soil functions. Biochar Application is the first reference to offer a complete assessment of the various impacts of biochar on soil and ecosystems, and includes chapters analyzing all aspects of biochar technology and application to soil, from ecogenomic analyses and application ratios to nutrient cycling and next generation sequencing. Written by a team of international authors with interdisciplinary knowledge of biochar, this reference will provide a platform where collaborating teams can find a common resource to establish outcomes and identify future research needs throughout the world. - Includes multiple tables and figures per chapter to aid in analysis and understanding - Includes a comprehensive table of the methods used within the contents, ecosystems, contaminants, future research, and application opportunities explored in the book - Includes knowledge gaps and directions of future research to stimulate further discussion in the field and in climate change policy - Outlines the latest research on the interactions of complex microbial populations and their functional, structural, and compositional dynamics - Offers an assessment of the impacts of biochar on soil and ecosystems
Download or read book Soil Management and Climate Change written by Maria Angeles Munoz and published by Academic Press. This book was released on 2017-10-16 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Management and Climate Change: Effects on Organic Carbon, Nitrogen Dynamics, and Greenhouse Gas Emissions provides a state of the art overview of recent findings and future research challenges regarding physical, chemical and biological processes controlling soil carbon, nitrogen dynamic and greenhouse gas emissions from soils. This book is for students and academics in soil science and environmental science, land managers, public administrators and legislators, and will increase understanding of organic matter preservation in soil and mitigation of greenhouse gas emissions. Given the central role soil plays on the global carbon (C) and nitrogen (N) cycles and its impact on greenhouse gas emissions, there is an urgent need to increase our common understanding about sources, mechanisms and processes that regulate organic matter mineralization and stabilization, and to identify those management practices and processes which mitigate greenhouse gas emissions, helping increase organic matter stabilization with suitable supplies of available N. - Provides the latest findings about soil organic matter stabilization and greenhouse gas emissions - Covers the effect of practices and management on soil organic matter stabilization - Includes information for readers to select the most suitable management practices to increase soil organic matter stabilization
Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Organic Microanalysis written by Al Steyermark and published by Elsevier. This book was released on 2012-12-02 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative Organic Microanalysis, Second Edition presents the recommendations of the American Chemical Society group for specification and methods of organic microanalysis. This book is organized into 23 chapters, and starts with discussions on test samples, blank tests, second type of efficient vibration-absorbing balance table, and microchemical balances. Other general topics covered include the Kjeldahl procedures to determine nitrogen compounds; oxygen flask combustions; determination of fluorine; and microhydrogenation. The final chapters present the modification of the procedure for the determination of oxygen using gravimetry. This book will be of great value to microanalysts, researchers, and college students who wants to expand their understanding in organic microanalysis.
Download or read book Kjeldahl Guide written by Huldrych Egli and published by . This book was released on 2008 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
