OUFfSMALL-SPACE METERING PUMP IS BIG ON ACCURACY Algorithms for Chemical Computations ACS Symposium Series No. 46 Ralph E. Christoffersen, Editor The University of Kansas A symposium sponsored by the Division of Computers in Chemistry of the American Chemical Society. This multidisciplinary collection of state-of-the-art papers assesses significant developments in algorithms for several important areas of chemistry and pinpoints places where currently available algorithms are inadequate. (Leading experts not only evaluate the .tremendous opportunities for progress ,in chemical research that algorithms provide but also analyze the substantial difficulties that algorithms may present. Topics covered include those of particular interest to scientists doing significant amounts of computing in the fields of quantum chemistry, scattering, computer handling of chemical information, and solid state theory. CONTENTS Graph Algorithms in Chemical Computation · Algorithm Design in Computational Quantum Chemistry · Rational Selection of Algorithms ιοη Molecular Scattering Calculations · Molecular Dynamics and Transition State Theory · Newer1 Computing Techniques for Molecular Structure Studies by X-ray Crystallography · Algorithms in the Computer Handling of Chemical Information
151 pages (1977) Clothbound $12.75 LC 77-5030 ISBN 0-8412-0371-7 SIS/American Chemical Society 1155 16th St., N.W./Wash., DC. 20036 Please send copies of SS 46 Algorithm for Chemical Computations at $12.75 per copy
Our Series 20 Chem/Meter hydraulic diaphragm metering pump will give you repetitive accuracy within ± 1% or better. Measuring only 93A" χ ΛΥ8" χ 37Α£', it's designed for steady, con tinuous feeding of clear fluids. How? The programmed cam drive produces a constant velocity discharge—when the full displace ment of two plungers working 180° apart are combined in a common manifold, a steady flow is established. And it provides capacities to 4.9 and 16.0 ML/min —with pressures to 1000 psig. The series 20 Chem/Meter's wetted parts are made of corro sive resistant stainless steel with sapphire ball-seats and teflon diaphragms. With its totally enclosed, no-seal leakproof design and remote capacity control, its features make it ideal for applications such as chromatography columns, laboratory apparatus and indus trial wet process analytical equipment. To get all the details on why our little Chem/Meter is a big per former, write Chempump Division,Crane Co., Warrington, Pa. 18976.
CRANE
CHEMPUMP CIRCLE 32 O N READER SERVICE CARD
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CIRCLE 20 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 50, NO. 9, AUGUST
1978 ·
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