Innovations for chemists: NMD
Ashing
BOOKS monton, Canada, June 1966. This symposium, consisting of the presentation of 28 papers was jointly sponsored by the ACS Analytical Division and ANALYTICAL CHEMISTRY.
The majority of
the papers have appeared in a number of issues of Separation Science. I n addition, a summary of the meeting was carried as a separate report in the January 1967 issue of ANALYTICAL
below 150°C retains inorganics
CHEM-
ISTRY, page 47 A.
The papers are collected here in a single volume. Particle Size Analysis. viii + S68 pages. Society for Analytical Chemistry, Book Dept., 9/10 Savile Bow, London, W. 1, England. 1967. $B8.
The NMD (Nominal Mass Digitizer) Accessory for the Varian M-66 Mass Spectrometer provides d i g i t a l readout a n d / o r computer-compatible data, freeing you from the calculations required in mass s p e c t r u m analysis. You get digital data immediately, giving you more time for the more creative aspects of your research. This is another example of innovations in NMR, EPR, Mass Spectrometry, and Laboratory Magnets to help the chemist do a better job more easily. For information, contact your local Varian representative.
varian analytical instrument division palo alto/california 94303 zug/Switzerland · sydney/australia Circle No. 188 on Readers' Service Card
82 A
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ANALYTICAL CHEMISTRY
This book contains 27 papers covering various methods of sizing particles : manual counting (4 papers) ; automatic counting (5 papers) ; sedimentation (6 papers) ; centrifugal sedimentation (4 papers) ; surface area measurements (4 papers) ; and two papers each on general subjects and on applications of particle size analysis. The papers were originally contributed by the authors (from Great Britain, U. S., India, Japan, and the Netherlands) to a Conference on Particle Size Analysis, organized by The Society for Analytical Chemistry, and held a t Loughborough University of Technology in September 1966. The discussions elicited at the presentation of these papers were recorded and edited and are included in this volume. Solvent Extraction Chemistry. D. Dyrssen, J.-O Liljenzin, J. Rydberg, Editors, xxvi + 682 pages. John Wiley & Sons, 60S Third Ave., New York, N. Y. 10016. 1967. $3S. This book presents the Proceedings of the International Conference on Solvent Extraction Chemif-try, held in Gothenburg, August 27 to September 1, 1966. This conference was organized to emphasize the basic molecula ideas of solvent extraction. An effort was made also a t the meeting to bring the "applied" approach to the attention of theoretical chemists. The conference was attended by 190 active members from 25 countries. The papers given, collected in this book, are divided into sections according to the kind of reactions, molecular or physical, dominating the extraction process. These sections a r e : complexing in aqueous solutions by solvent extraction; chelate extraction and adduct formation; neutral and acid phosphoryl compounds as extractants ; alkyl ammonium salts and other ion pairs as extractants; structural effects and interfacial phenomena; molten phases,
Pyrometer shows that Tracerlab's LTA-600 can ash samples thoroughly at temperatures well below 150°C — low enough to leave all inorganic constituents unaltered. A cold plasma of atomic oxygen does the ashing, while our accessory pyrometer keeps you posted on the temperature. This low-temperature d r y asher permits more accurate quantitative elemental and structural analyses of p l a n t a n d a n i m a l tissues, bones, coal, oil w e l l cores, polymers, and radioactive materials. Prepares pure samples for atomic adsorption spectrophotometry, mass spectrometry, emission spectroscopy, X-ray diffraction, and electron microscopy. Send f o r literature on equipment, techniques a n d services.
TRACERLAB A Division of Laboratory For Electronics, tnc.
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