HPLC doesn't have t o mean High Priced Liquid Chromatography An ISCO Model 226 absorbance detector gives you the sensitivity you need at the price you want. A t $1,395, it's by far the lowest priced HPLC detector offering a 0.005 AUFS range. You also get dual beam design, fast response, small volume flow cells, and both 254 and 280 nm operation. The Model 226 is only one of three ISCO absorbance detectors with big specifications and no-so-big prices. Send now for your catalog describing them all — or phone toll free: [800] 228-4250 (continental U.S.A. except Nebraska). Instrumentation Specialties Co., Box 5347, Lincoln, Nebraska 68505.
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Capillary Chromatography Catalog The most c o m p l e t e up-to-date capillary catalog available; totally dedicated to capillary c o l u m n s a n d accessories . . . Request y o u r s today . . .
An up-to-date report on t h e g r o w i n g u s e of c o m p u t e r s to assist in t h e identification of c o m p l e x u n k n o w n m o l e c u l a r s t r u c t u r e s in the laboratory.
ComputerAssisted Structure Elucidation ACS Symposium Series N o . 54 Dennis H. Smith, Editor Stanford University School of Medicine A symposium sponsored by the Division of Chemical information of the American Chemical Society.
ALLTECH ASSOCIATES 202 CAMPUS DRIVE · ARLINGTON HEIGHTS, ILLINOIS 60004 · 312-392-2670 CIRCLE 8 O N READER SERVICE CARD
762 A · ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 7, JUNE 1979
T h e collection covers s u c h d i v e r s e m e t h o d o l o g i e s as library search t e c h n i q u e s , pattern recognition, artificial intelligence p r o g r a m s , a u t o m a t e d interpretation of c h e m i c a l data, structure g e n e r a t i o n , a n d r a n k i n g of c a n d i d a t e structures based o n p r e d i c t i o n of chemical or s p e c t r o s c o p i c behavior.
CONTENTS Structure Identification of Unknown Mass Spectra · Components of Complex Mixtures by GC—MS · N1H—EPA Chemical Information System · Determination of t tie Secondary Structure of Globular Proteins · Automatically Acquired l l C NMK Rules · Computerized Structural Predictions From ,_,C NMK Spectra · Interactive Structure Elucidation · CHKMICS: A Computer Program System for Structure Elucidation of Organic Compounds · Computer Assistance for the Structural Chemist
151 pages (1977) clothbound $15.50 LC 77-24427 ISBN 0-8412-0384-9
Order from: SIS/American Chemical Society 1155 16th St., N.W./Wash., D.C. 20036
