Download or read book Some Improvements in Paper Chromatography Technique for Sap soluble Plant Pigments written by Kārliš Lesiņs and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genus Medicago Leguminosae written by K.A. Lesins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: In introducing ourselves it should be told that in our native Latvian language our name is written LesiJ;l. s. In most English publications, as in this work, the writing has been simplified to Lesins, and often only the first initial has been used. Our interest in Medicago was first aroused during 1936-38, while em ployed as teachers in the agricultural and home economics school at Be brene, Upper Zemgale, Latvia. Some plants of alfalfa (M. varia, M. media), locally called 'lucema', were found growing wild along roadsides in that area, though no alfalfa fields had been seen in the vicinity within the me mory of local farmers. Some roadside plants were dug out and transplanted to the garden, but their seedset was poor. During the next few years we paid only slight attention to alfalfa, the reason being that Latvia is a country with Atlantic climatic features (annual precipitation 600-700 mm; mild win ters for its 56°-58° N. Lat. , with January isotherms between -3° and -7° C; moderately warm summers, with July isotherms between 16° and 18° C), which together with its soils, mostly of acidic, podzolic type, is not well suited for alfalfa production. It was not until 1945 in Sweden that work on alfalfa came to the foreground, when the senbor author was assigned investi gations on alfalfa seed setting by Dr. Erik Akerberg, then director of the Swedish Seed Association branch station at ffituna.
Download or read book Canadian Journal of Genetics and Cytology written by and published by . This book was released on 1961 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Paper Chromatography and Survey of Applications written by Karel Macek and published by . This book was released on 1962 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comptes Rendus de la Soci t G n tique Du Canada written by Genetics Society of Canada and published by . This book was released on 1956 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Abstracts written by and published by . This book was released on 1959 with total page 2002 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Paper Chromatography 1957 1960 and Survey of Applications written by Karel Macek and published by . This book was released on 1962 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: První svazek vyšel r. 1960 česky a německy. Zařadil 10 290 záznamů. Jak se poté rozrostla papírová chromatografie, dokazuje druhý svazek, v němž je shromážděno 8292 záznamů. Je rozvržen na dvě části, všeobecnou a speciální.První uvádí literaturu o povšechných otázkách, obecných principech, teorii, technikách a přípravných fázích, druhá o jednotlivých sloučeninách. Anglické, francouzské a německé tituly jsou otištěny v původním jazyce, ostatnípřeloženy do angličtiny.
Download or read book Bibliography of Paper and Thin layer Chromatography and Survey of Applications written by and published by . This book was released on 1962 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chromatography written by Ivor Smith and published by Elsevier. This book was released on 2013-10-22 with total page 1111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chromatographic and Electrophoretic Techniques, Volume I — Chromatography focuses on techniques, processes, reactions, and methodologies involved in chromatography. The selection first ponders on paper chromatographic apparatus and techniques; desalting and related techniques; and apparatus and techniques in thin layer chromatography. Discussions focus on chromatographic solvents, location reagents, chemical conversions occurring during electrolytic desalting, electrodialysis, and ion exchange desalting. The book also examines paper chromatography, applications of thin layer chromatography in clinical biochemistry, and dinitro-phenyl aminoacids. The publication takes a look at iodoaminoacids and related compounds, indoles and related Ehrlich reactors, and imidazoles. The book also elaborates on guanidines, purines and pyrimidines and their derivatives, sugars, ketoacids, organic and phenolic acids, and chromatographic procedures. The selection is a dependable reference for biochemists and readers interested in chromatography.
Download or read book Phytochemical Methods written by Jeffrey B. Harborne and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are many books available on methods of organic and biochemical analysis, the majority are either primarily concerned with the application of a particular technique (e.g. paper chromatography) or have been written for an audience of chemists or for biochemists work ing mainly with animaltissues. Thus, no simple guide to modern metho ds of plant analysis exists and the purpose of the present volume is to fill this gap. It is primarily intended for students in the plant sciences, who have a botanical or a general biological background. It should also be of value to students in biochemistry, pharmacognosy, food science and 'natural products' organic chemistry. Most books on chromatography, while admirably covering the needs of research workers, tend to overwhelm the student with long lists of solvent systems and spray reagents that can be applied to each class of organic constituent. The intention here is to simplify the situation by listing only a few specially recommended techniques that have wide currency in phytochemical laboratories. Sufficient details are provided to allow the student to use the techniques for themselves and most sections contain some introductory practical experiments which can be used in classwork.
Download or read book Chromatographic and Electrophoretic Techniques written by Ivor Smith and published by . This book was released on 1969 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chromatography v 2 Zone electrophoresis Includes bibliographies written by Ivor Smith and published by . This book was released on 1963 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Abstracts of Biological Sciences written by and published by . This book was released on 1957 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pigments in Vegetables written by Jeana Gross and published by Springer. This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vegetables contain several classes of pigments: the green chlorophylls; the yellow, orange, and red carotenoids; the red, blue, or violet anthocyanins; andthered-violet betalains. Thisbookcoversthechlorophyllsandthecarot enoids, the two chief classes of vegetable pigments, and is the first major compilationofthis kind. Structure, physical and chemical properties, and analytical methods, in cluding special methods adapted for certain vegetables, are discussed first, and are then followed by a discussion of physiological and biochemical as pects, including location, biosynthesis, and biochemical changes during plant developmentand senescence. Both pigment classes have extremelyimportant biological functions. The chlorophylls are of paramount importance in photosynthesis. The carot enoids, besides their photofunction, have a highly significant role in nutri tion. Someofthem havevitaminA value and, possibly, a rolein the preven tion of human cancer. The chlorophyll distribution table includes all ofthe currentlyavailable quantitativedataonvegetables. The discussion of carotenoid distribution describes the unique carot enoids found invegetablesandincludesqualitativeandquantitativedistribu tion tables for the most common vegetables. These tables summarize all of the publisheddata to date, but they are far from complete. However, appli cationofrecentlyavailabletechniques should fill theenormousgaps, update old data, and permit an accurate assessment of the vitamin A value of the food. Suchcompletedatawould also make it possible to usecarotenoid dis tributioninthetaxonomyofvegetables. The presentations of pigment distribution also consider the changes in pigmentcontentduring storageand processing. Thebookalsoincludesapresentationoffactors affectingpigmentsynthe sis in vegetables (e.g., phytohormones) and environmental factors (e.g., light, temperature), as well as fertilizers and pesticides.
Download or read book Van Nostrand s Scientific Encyclopedia written by Douglas M. Considine and published by Springer Science & Business Media. This book was released on 2013-12-11 with total page 3529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancements in science and engineering have occurred at a surprisingly rapid pace since the release of the seventh edition of this encyclopedia. Large portions of the reference have required comprehensive rewriting and new illustrations. Scores of new topics have been included to create this thoroughly updated eighth edition. The appearance of this new edition in 1994 marks the continuation of a tradition commenced well over a half-century ago in 1938 Van Nostrand's Scientific Encyclopedia, First Edition, was published and welcomed by educators worldwide at a time when what we know today as modern science was just getting underway. The early encyclopedia was well received by students and educators alike during a critical time span when science became established as a major factor in shaping the progress and economy of individual nations and at the global level. A vital need existed for a permanent science reference that could be updated periodically and made conveniently available to audiences that numbered in the millions. The pioneering VNSE met these criteria and continues today as a reliable technical information source for making private and public decisions that present a backdrop of technical alternatives.
Download or read book Painted Wood written by Valerie Dorge and published by Getty Publications. This book was released on 1998-08-27 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: The function of the painted wooden object ranges from the practical to the profound. These objects may perform utilitarian tasks, convey artistic whimsy, connote noble aspirations, and embody the highest spiritual expressions. This volume, illustrated in color throughout, presents the proceedings of a conference organized by the Wooden Artifacts Group of the American Institute for Conservation of Historic and Artistic Works (AIC) and held in November 1994 at the Colonial Williamsburg Foundation in Williamsburg, Virginia. The book includes 40 articles that explore the history and conservation of a wide range of painted wooden objects, from polychrome sculpture and altarpieces to carousel horses, tobacconist figures, Native American totems, Victorian garden furniture, French cabinets, architectural elements, and horse-drawn carriages. Contributors include Ian C. Bristow, an architect and historic-building consultant in London; Myriam Serck-Dewaide, head of the Sculpture Workshop, Institut Royal du Patrimoine Artistique, Brussels; and Frances Gruber Safford, associate curator of American decorative arts at the Metropolitan Museum of Art in New York. A broad range of professionals—including art historians, curators, scientists, and conservators—will be interested in this volume and in the multidisciplinary nature of its articles.
Download or read book Handbook of Reference Methods for Plant Analysis written by Yash Kalra and published by CRC Press. This book was released on 1997-12-29 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Reference Methods for Plant Analysis is an outstanding resource of plant analysis procedures, outlined in easy-to-follow steps and laboratory-ready for implementation. Plant laboratory preparation methods such as dry ashing and acid and microwave digestion are discussed in detail. Extraction techniques for analysis of readily soluble elements (petiole analysis) and quick test kits for field testing are also presented. This handbook consolidates proven, time tested methods in one convenient source. Plant scientists in production agriculture, forestry, horticulture, environmental sciences, and other related disciplines will find the Handbook a standard laboratory reference. The Handbook was written for the Soil and Plant Analysis Council, Inc., of which the editor is a board member. The council aims to promote uniform soil test and plant analysis methods, use, interpretation, and terminology; and to stimulate research on the calibration and use of soil testing and plant analysis. This reference will help readers reach these important goals in their own research.
