Download or read book Aktuelle Methoden der Laser und Medizinphysik written by Ulrich Hartmann and published by Margret Schneider. This book was released on 2005 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pamphlets on Biology written by and published by . This book was released on 1928 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Moderne Methoden der Pflanzenanalyse Modern Methods of Plant Analysis written by K. Paech and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: If, following the solvent extraction of a hydrocarbon from a plant, it is not known whether it is one or the other, a method of distinguishing the two is described by HENDRICKS, WILDMAN and JONES (1946). The technique involves the infra-red absorption spectra of the two isomers. At about 12 mp. the relative absorption coefficient of rubber is 42% greater than for gutta. ScHLESINGER and LEPER (1951) describe two procedures for separation of the rubber and gutta hydrocarbons from large quantities of crude chicle. In one, the chicle is extracted with benzene which dissolves both isomers. An excess absolute ethyl acetate is added and the mixture stored at 5° C overnight. The gutta precipitates out and the rubber remains in solution. The other method is as follows: (1) Ten grams of chicle are extracted with acetone for 24 hours in a Soxhlet extraction apparatus. (2) The insoluble material in the thimble is allowed to .. it dry, then immersed in 150 ml. of cold Skellysolve B in a refrigerator at 10° C and· allowed to stand for 48 hours with occasional agitation. (3) The thimble is then removed from the solvent and the enclosed residue washed several times with fresh, cold Skellysolve B. (4) An excess of acetone and a few drops of a concentrated aqueous solution of sodium iodide are added to the combined Skellysolve B extract and washings and allowed to stand overnight in a refrigerator.

Download or read book Landolt B rnstein Physikalisch chemische Tabellen written by Hans Landolt and published by . This book was released on 1912 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book German Books written by and published by . This book was released on 1925 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physiologie des Menschen written by R.F. Schmidt and published by Springer. This book was released on 2013-12-11 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Die Grundlagen der Quantenmechanik written by Günther Ludwig and published by Springer. This book was released on 2013-12-11 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 1924 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Autonomy of Chemistry written by Peter Janich and published by Königshausen & Neumann. This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nature written by Sir Norman Lockyer and published by . This book was released on 1927 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the International Association of Medical Museums written by International Academy of Pathology and published by . This book was released on 1911 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Technical Methods and Bulletin written by International Association of Medical Museums and published by . This book was released on 1915 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annalen Der Physik written by and published by . This book was released on 1913 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes original papers in the areas of experimental, theoretical, applied and mathematical physics, and related areas.

Download or read book Bulletin written by International Association of Medical Museums and published by . This book was released on 1915 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemie Der Enzyme written by Hans Karl August Simon von Euler-Chelpin and published by . This book was released on 1927 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fortschritte der Arzneimittelforschung Progress in Drug Research Progr s des recherches pharmaceutiques written by R. G. Denkewalter and published by Birkhäuser. This book was released on 2013-03-08 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instruments and Measurements written by Helge Von Koch and published by Elsevier. This book was released on 2012-12-02 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instruments and Measurements: Chemical Analysis, Electric Quantities, Nucleonics and Process Control, Volume I covers the proceedings of the Fifth International Instruments and Measurements Conference, held in Stockholm, Sweden on September 13-16, 1960. Separating 120 lectures into 49 chapters, this book is divided into five sections. The first section discusses the advances in automatic process control instrumentation, including developments in pneumatic, electropneumatic, and electrohydraulic control. This section deals also with the stability, optimization, and use of fast digital computer for process control applications. The subsequent two sections consider the physical methods of chemical analysis and nuclear instrumentation. These sections survey the developments in gas chromatography, mass spectrometry, and quadrupole mass filter for chemical analysis. These topics are followed by discussions on some structural and analytical applications of high resolution nuclear magnetic resonance. The remaining sections explore the measurements of electric and magnetic quantities, as well as the reactor control. These sections are devoted to X-ray methods, UV spectroscopy, turbidimeter, and infrared techniques. Analytical chemists, process and instrumentation engineers, and researchers in instruments, chemical analysis, and process control fields will find this book invaluable.