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4271-4280 of 4300 results in All results

Vitamins and Hormones

  • 1st Edition
  • Volume 10
  • January 1, 1952
  • Robert S. Harris + 2 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 8 6 6 0 7 - 9

The Alkaloids

  • 1st Edition
  • January 1, 1952
  • R. H. F. Manske + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 2 1 9 7 - 7
The Alkaloids: Chemistry and Physiology, Volume II focuses on strychnine and morphine alkaloids. This book discusses the elucidation of the structure of morphine, codeine, and thebaine; synthetic hydrophenanthrenes related to the morphine alkaloids; and stereochemistry of the morphine alkaloids and sinomenine. The elucidation of the constitution of sinomenine, biological effects of colchicine, chemistry of individual alkaloids, and alkaloids of gelsemium species are also elaborated. This text likewise covers the isolation of the alkaloids, phenanthrene nucleus of morphine, fission around the nitrogen atom, and synthetic hydrophenanthrenes related to the morphine alkaloids. This volume is useful to chemists and researchers conducting work on alkaloid chemistry.

Paper Chromatography

  • 1st Edition
  • January 1, 1952
  • Richard J. Block + 2 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 6 8 7 - 8
Paper Chromatography: A Laboratory Manual focuses on methods, technologies, and processes, and aims to provide readers with a readily accessible source for the uses and adaptations of paper chromatography. The book first offers information on general methods, including descending, ascending, and ascending-descending chromatography, filter paper ""chromatopile"", ""reversed phase"" paper chromatography, and paper electrophoresis. The text then elaborates on quantitative methods and amino acids, amines, and proteins. Discussions focus on visual comparison, elution, area of spot, total color of spot, maximum color density, identification of amines, separation of proteins, and general directions. The publication examines carbohydrates and aliphatic acids and steroids. Topics include simple sugars, miscellaneous derived sugars, and aliphatic acids. The text also ponders on purines, pyrimidines, and related substances and phenols, aromatic acids, and porphyrins. The text is a valuable reference for readers interested in paper chromatography.

Radioactive Tracers in Biology

  • 2nd Edition
  • January 1, 1951
  • Martin D. Kamen
  • Louis F. Fieser + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 4 4 7 - 8
Radioactive Tracers in Biology: An Introduction to Trace Methodology, Second Edition focuses on the biochemical and physiological aspects of tracer research, including medical applications of tracer techniques, radioactivity, radiation hazards, and radioactive isotopes. The book first offers information on atomic nuclei, radioactivity, and the production of radioactive isotopes and radiation characteristics of tracer atoms. Discussions focus on nuclear reactions, neutron-induced and deuteron-induced transmutations, properties of atomic nuclei, and target techniques and radiochemistry. The manuscript also ponders on the procedures for radioactive assay and radiation hazards. The text examines the biochemical, medical, and physiological applications of tracer methodology. The manuscript also takes a look at radioactive hydrogen, short-lived and long-lived radioactive carbon, radioactive phosphorus and sulfur, and alkali metal and alkaline earth tracers. Topics include synthesis of organic intermediates for tracer carbon studies; biosynthesis of labeled carbon compounds; and general survey of alkali metal tracers. The publication is a dependable reference for readers interested in radioactive tracers.

Vitamins and Hormones

  • 1st Edition
  • Volume 8
  • January 1, 1950
  • Robert S. Harris + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 8 6 6 0 5 - 5

Vitamins and Hormones

  • 1st Edition
  • Volume 7
  • January 1, 1949
  • Robert S. Harris + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 8 6 6 0 4 - 8