New Books
Variable Speed
FLASH EVAPORATOR with
THERMO-LIFT Controlled Heating Bath
This model is equipped with a series wound motor and solid state control providing adjustable speed between 25 and 150 RPM. The Flash Evaporator assures high evaporation rate—without contaminating back-drip—of aqueous solutions, high boiling point solvents and other materials. An ideal source of heat is Buchler s Thermo-Lift which is a combination lift and temperature controlled water bath. The Thermo-Lift, which may be adjusted from 8" to 16" in height, is useful as a source of heat for rotary evaporators, for distillation procedures and for applications where flexibility in height is required.
BUCHLER INSTRUMENTS DIVISION IMUCLEAR-CHICAGO CORP. A SUBSIDIARY OF E. 0
SEARLE
&
CO.
1327 SIXTEENTH STREET, FORT LEE, NEW JERSEY, 07024 Write for Technical Bulletin CIRCLE 17 ON READER SERVICE CARD
HIGH RESOLUTION MASS SPECTRA FOR DOLLARS INSTEAD OF THOUSANDS Are you typical of the chemist who needs high resolution mass spectral data, but cannot justify the expenditure of thousands of dollars for the equipment?
A high and low resolution MS-30 mass spectrometer with a combined gas chromatographic inlet is available to serve your needs.
Solids, liquids, or gases—low molecular weight or high (up to 2400)— are easily and quickly analyzed. The gas chromatographic inlet facilitates the identification of minor impurities in foods, drugs, solvents, or other chemicals. Pesticides, drugs, or other foreign chemicals are easily and unambiguously identified in water, body fluids, soil, or agricultural products. Elemental compositions are determined from mass measurements with accuracies better than ten parts per million. You can now obtain mass spectral data from the most sophisticated instrumentation available—and a t reasonable prices. Results are totally computerized, leading to speed, accuracy, and convenience of the final output. Contact: Stephen R. Shrader, Ph. D.
SHRADER ANALYTICAL & Consulting Laboratory,
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Booth 624 at the 23rd Pittsburgh Conference on Analytical Chemistry
CIRCLE 163 ON READER SERVICE CARD ·
ANALYTICAL CHEMISTRY, VOL. 4 3 , NO. 13, NOVEMBER
Colloidal and Morphological Behavior of Block and Graft Copolymers. Gunther E. Molau, Editor, xv + 327 pages. Plenum Publishing Corp., 227 West 17th St., New York, N.Y. 10011. 1971. $14.50
This volume offers the proceedings of a symposium sponsored by the Polymer Division of the American Chemical Society that was held as part of the 160th . National Meeting of the Society in Chicago, September 13-18, 1970. Some of the topics presented include: electron microscopy of block copolymers of styrene with butadiene or isoprene, biological membranes, and block copolymers containing siloxane chains. This book is an important source of material for chemists, medical research workers, biochemists, and for all academic and industrial scientists interested in polymers, surface chemistry, colloids, liquid crystals, and membranes. Computers in Analytical Chemistry. Charles H. Orr and John A. Norris, Editors, ix + 106 pages. Plenum Publishing Corp., 227 West 17th St., New York, N.Y. 10011. 1970. $12.50
The papers in this volume, containing recent developments in computer application in analytical chemistry, are from the Eastern Analytical Symposium, held in November 1968. Included are papers on the computer in the laboratory; a multiple-user laboratory automation system; and realtime, high-resolution mass spectrometry. Analytical chemists and instrumentation engineers will find this book to be of value. Developments in Applied Spectroscopy, Vol 8. E. L. Grove, Editor, ix + 325 pages. Plenum Publishing Corp., 227 West 17th St., New York, N.Y. 10011. 1970. $20 Developments in Applied Spectroscopy, Vol 9. E. L. Grove and A. J. Perkins, Editors, ix + 453 pages. Plenum Publishing Corp., 227 West 17th St., New York, N.Y. 10011. 1971. $19.50
Volume 8 presents a collection of selected papers which were presented at the 20th Mid-America Symposium on Spectroscopy, held in Chicago, May
3450 Lovett Ave. Detroit, M i c h . 48210 (313) 825-5550
60 A
mers of styrene and butadiene or isoprene; multiphase structure originating from phase separation of block polymers; thermodynamic theory of domain formation in block polymers; and structure and properties of segmented polyurethanes.
1971
