Kjeldahl Method For Nitrogen Determination

Author : R. B. Bradstreet
Publisher : Elsevier
Page : 248 pages
File Size : 50,9 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483258591

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The Kjeldahl Method for Organic Nitrogen by R. B. Bradstreet Pdf

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.

Author : J. Benton Jones (Jr.)
Publisher : Unknown
Page : 92 pages
File Size : 48,8 Mb
Release : 1991
Category : Analytical chemistry
ISBN : CORNELL:31924063117943

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Kjeldahl Method for Nitrogen Determination by J. Benton Jones (Jr.) Pdf

Author : Jaime Aguirre
Publisher : Springer Nature
Page : 151 pages
File Size : 43,6 Mb
Release : 2023-07-05
Category : Science
ISBN : 9783031314582

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The Kjeldahl Method: 140 Years by Jaime Aguirre Pdf

This book provides a comprehensive survey of the Kjeldahl method and its modifications. It covers all relevant topics, including sample digestion and its variables, distillation and determination of ammonia, equipment development, and concludes with a review of the literature published on the method. Since its introduction in 1883, the Kjeldahl method has been an essential analytical tool for nitrogen determination in research, academic and industrial laboratories. This makes the history of the Kjeldahl method of outstanding relevance to graduate students, postgraduate students, researchers, teachers, and laboratory staff in the fields of analytical chemistry, food/feed analysis, animal/human nutrition, soil/water analysis, and so forth. "This method has probably been applied in one modification or another to every possible form of nitrogen, and in perhaps more laboratories than almost any other single type of analytical method" (Kirk, 1950).

Author : Richard Owusu-Apenten
Publisher : CRC Press
Page : 428 pages
File Size : 51,5 Mb
Release : 2002-05-24
Category : Technology & Engineering
ISBN : 9780824744670

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Food Protein Analysis by Richard Owusu-Apenten Pdf

Ideal for planning, performing, and interpreting food protein analyses, especially as it relates to the effect of food processing on protei investigation results. Delineates basic research principles, practices, and anticipated outcomes in each of the illustrated protein assays.

Author : Al Steyermark
Publisher : Elsevier
Page : 684 pages
File Size : 52,9 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323161367

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Quantitative Organic Microanalysis by Al Steyermark Pdf

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.

Author : E. P. Clark
Publisher : Elsevier
Page : 144 pages
File Size : 55,9 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483275918

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Semimicro Quantitative Organic Analysis by E. P. Clark Pdf

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.

Author : Christos Tsadilas
Publisher : CRC Press
Page : 447 pages
File Size : 51,5 Mb
Release : 2022-01-03
Category : Technology & Engineering
ISBN : 9781000466881

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Nitrate Handbook by Christos Tsadilas Pdf

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.

Author : British Standards Institute Staff
Publisher : Unknown
Page : 22 pages
File Size : 46,5 Mb
Release : 2002-01-28
Category : Electronic
ISBN : 0580388719

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Milk. Determination of Nitrogen Content. Kjeldahl Method by British Standards Institute Staff Pdf

Milk, Dairy products, Nitrogen, Determination of content, Chemical analysis and testing, Food testing, Liquids, Kjeldahls method

Author : M.R. Carter,E.G. Gregorich
Publisher : CRC Press
Page : 1264 pages
File Size : 47,6 Mb
Release : 2007-08-03
Category : Science
ISBN : 9781420005271

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Soil Sampling and Methods of Analysis by M.R. Carter,E.G. Gregorich Pdf

Thoroughly updated and revised, this second edition of the bestselling Soil Sampling and Methods of Analysis presents several new chapters in the areas of biological and physical analysis and soil sampling. Reflecting the burgeoning interest in soil ecology, new contributions describe the growing number and assortment of new microbiological

Author : William Victor Bartholomew,Francis Eugene Clark
Publisher : Unknown
Page : 640 pages
File Size : 43,7 Mb
Release : 1965
Category : Science
ISBN : STANFORD:36105033315917

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Soil Nitrogen by William Victor Bartholomew,Francis Eugene Clark Pdf

Origin and distribution of nitrogen in soil. Soil inorganic nitrogen. Organic nitrogen in soils. Ammonium fixation and other reactions involving a nonenzymatic immobilization of mineral nitrogen in soil. Mineralization and immobilization of nitrogen in the decomposition of plant and animal residues. Nitrification. Denitrification. Symbiotic nitrogen fixation. Environmental factors in the fixation of nitrogen by the legume. Nonsymbiotic nitrogen fixation. The plant's need for and use of nitrogen. Movement of nitrogen in soil. Evaluation of incoming and outgoing processes thar affect soil nitrogen.

Author : Huldrych Egli
Publisher : Unknown
Page : 152 pages
File Size : 44,6 Mb
Release : 2008
Category : Food
ISBN : 303301688X

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Kjeldahl Guide by Huldrych Egli Pdf

Author : Paul De Bièvre
Publisher : Springer Science & Business Media
Page : 300 pages
File Size : 46,5 Mb
Release : 2003-01-17
Category : Science
ISBN : 3540439900

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Measurement Uncertainty in Chemical Analysis by Paul De Bièvre Pdf

It is now becoming recognized in the measurement community that it is as important to communicate the uncertainty related to a specific measurement as it is to report the measurement itself. Without knowing the uncertainty, it is impossible for the users of the result to know what confidence can be placed in it; it is also impossible to assess the comparability of different measurements of the same parameter. This volume collects 20 outstanding papers on the topic, mostly published from 1999-2002 in the journal "Accreditation and Quality Assurance." They provide the rationale for why it is important to evaluate and report the uncertainty of a result in a consistent manner. They also describe the concept of uncertainty, the methodology for evaluating uncertainty, and the advantages of using suitable reference materials. Finally, the benefits to both the analytical laboratory and the user of the results are considered.

Author : Hans-Ferdinand Linskens,John F. Jackson
Publisher : Springer Science & Business Media
Page : 393 pages
File Size : 44,8 Mb
Release : 2013-11-11
Category : Science
ISBN : 9783662016398

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Seed Analysis by Hans-Ferdinand Linskens,John F. Jackson Pdf

Modern Methods of Plant Analysis When the handbook Modern Methods of Plant Analysis was first introduced in 1954 the considerations were: 1. the dependence of scientific progress in biology on the improvement of ex isting and the introduction of new methods; 2. the difficulty in finding many new analytical methods in specialized jour nals which are normally not accessible to experimental plant biologists; 3. the fact that in the methods sections of papers the description of methods is frequently so compact, or even sometimes so incomplete that it is dif ficult to reproduce experiments. These considerations still stand today. The series was highly successful, seven volumes appearing between 1956 and 1964. Since there is still today a demand for the old series, the publisher has decided to resume publication of Modern Methods of Plant Analysis. It is hoped that the New Series will be just as acceptable to those working in plant sciences and related fields as the early volumes undoubtedly were. It is difficult to single out the major reasons for success of any publication, but we believe that the methods published in the first series were up-to-date at the time and presented in a way that made description, as applied to plant material, com plete in itself with little need to consult other publications. Contribution authors have attempted to follow these guidelines in this New Series of volumes.

Author : Arno Carl Fieldner,Carl A. Taylor
Publisher : Unknown
Page : 26 pages
File Size : 45,5 Mb
Release : 1915
Category : Coal
ISBN : UOM:39015077560913

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Determination of Nitrogen in Coal by Arno Carl Fieldner,Carl A. Taylor Pdf

Author : C.A. BLACK
Publisher : Unknown
Page : 128 pages
File Size : 48,7 Mb
Release : 1965
Category : Electronic
ISBN : 8210379456XXX

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METHODS OF SOIL ANALYSIS by C.A. BLACK Pdf