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Hydrogen Synthesis from Carbon Monoxide and Hydrogen Advances in Chemistry Series No. 1 78 Edwin L. Kugler, Editor Exxon Research and Engineering
Co.
F. W . Steffgen, Editor U.S. DOE—PETC Based on a symposium sponsored by the Division of Petroleum Chemistry of the American Chemical Society. Important research data for developing alternate sources of hydrocarbons! Worldwide interest in Fischer-Tropsch catalyzed synthesis has grown as a result of the increased costs and decreased availability being projected for supplies of petroleum — the major raw material for the petrochemical industries. Using improved analytical techniques, foremost U.S. scientists in the field thoroughly investigate these catalyzed reactions in twelve chapters focusing on methods of achieving product selectivity. Catalysts studied range from pure, singlecrystal nickel to meteoritic iron.
CONTENTS Kinetics of CO Hydrogénation on Nickel · Intermetallic Compound Catalysts · CO Hydrogénation over Ru Zeolites and over Ru-Fe Alloys · Kinetics of CO-Hj Reaction over CO-CU-AIJOJ Catalyst · Co-Based Catalysts · Co, COi Hydrogénation on Rh and Fe · Fischer-Tropsch Synthesis: Effect of Sulfur, Chain Growth · Carburization Studies · Rh-Based Catalytic Conversion · Synthesis of Fatty Acids
181 pages (1979) Clothbound $26.50 ISBN 0-8412-0453-5 LC 79-18286
SIS/American Chemical Society 1155 16th St., N.W./Wash., D.C. 20036 Please send copies of Advances 178 Hydrogen Synthesis from Carbon Monoxide and Hydrogen (ACH 0453-5) at $26.50 per copy. D Check enclosed for $ _. D Bill me. Postpaid in U.S. and Canada plus 75< elsewhere. California residents please add b% state use tax. Name Address City
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H-600-1 transmission electron microscope is equipped with an LaB6 gun and pushbutton-selectable TEM (1.4 A), SEM 20 A), and STEM (10 A) microscope modes. Available analytical capabilities include EDX, energy loss spectroscopy, diffraction, beam rocking, and spot scanning. Other features include a side entry goniometer stage, a three-stage condenser lens system (7 lenses), built-in microcomputer control, a high vacuum (5 X 10~7 torr) and automatic CRT data display. Hitachi 404
Circular Dichroism Instruments The Dichrographs MK IV and MK V are spectrophotometers for the measurement of circular dichroism. They operate from 1 8 0 - 8 0 0 nm extendable to 1 μνη. Stray light is kept at less than 0 . 0 0 0 5 % at 185 nm. The sensitivity of both instruments is 0.01 millidegrees at 220 nm. The MK IV is microprocessorcontrolled, and CD spectra can be ob tained in either millidegrees or ΔΑ onto an X-Y recorder. The MK V is a totally mini-computer operated system under software control. Instruments SA, Inc. 419
Syringe Injection Pump Model 1002 Micro-jector syringe drive is a linear motion injection/retraction device which delivers precise quantities of liquids or gases in discrete steps at a selected constant flow rate. It operates as a stand-alone with pushbutton digital controls, or it can be run off any c o m puter with open collector outputs. Sy ringe sizes up to 50 m L are accepted. Houston Atlas, Inc. 421
excitation at 5320 Â). For second harmonic generation the efficiency is 3 5 % at 2945 Â. Divergence is less than 0.2 mrd. The system is traversely pumped to offer high stability, broad spectral range, and excitation by several types of lasers. Instruments SA, Inc. 423
Chemicals Immobilized Heparin Heparin is immobilized on a beaded 4 % agarose support and supplied as a 5 0 % aqueous slurry containing 0 . 0 2 % NaN 3 , for affinity chromatographic separations of proteins and enzymes. The heparin loading is 0.4-0.5 m g / m L of settled gel. Immobilized heparin is effective in the purification of tyrosine hydroxylase, lipoprotein lipase, estradiol receptor and Hepatitis Β surface anti gen to mention a few. $ 4 5 / 1 0 m L pack age of settled gel. Pierce Chemical Co. 428
Resins for LC Dye Laser The Spectrolas Model HP-HR high-per formance dye laser system features four stages of pumping, one oscillator, one preamplifier, and two amplifiers. The conversion efficiency is 5 5 % (165 mj at 5890 Λ with a bandwidth of less than 10 mA when pumped by 300 mj
1448 A • ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 14, DECEMBER 1979
Over 20 high performance anion and cation exchange resins in a variety of cross-linkings and narrow particle size ranges are available for chromato graphic applications such as amino acids, carbohydrates, chlorinated biphenyls, phenols and sulfa drugs. Ben son Co. 429
Manufacturers' Literature TLC Systems. Describes the automatic spotter and the densitometer of the company's quantitative TLC systems, and includes specifications and a list of accessories. 7 pp. Kontes 435 Organic Chemical Bulletin. Includes ar ticles on a scintillator solution for aque ous samples at ambient temperatures and ion-pair chromatography. 7 pp. Eastman Kodak Co. 436 Formaldehyde Monitor. Reports on the use of the Miran-IA general-purpose ambient air analyzer to detect and mea sure concentrations of formaldehyde in industrial environments. 9 pp. Foxboro Co. 437 LC Sample Injection. Describes the theory of operation of eight HPLC sam ple injectors and the effects of various sample injection techniques on HPLC accuracy. 8 pp. Rheodyne, Inc. 438 Liquid Chromatographs. Describes and gives specifications for pumping mod ules, injection valves, detectors, and columns. 10 pp. Bioanalytical Systems Inc. 439
Computer Network System. Describes the Jupiter computer analysis system for nuclear data acquisition and analy sis, and its applications which include spectroscopy and environmental moni toring. 4 pp. Canberra Industries, Inc. 445
Catalogs Gas Chromatography. Offers chroma tographs, valves and valve accessories, micro detectors, and recorders. 44 pp. Carle Instruments, Inc. 450 IR Accessories. Describes and illus trates window materials, data handling equipment, gas cells, beam condensers and other accessories for the compa ny's complete line of IR spectropho tometers. 24 pp. Perkin-Elmer Corp.
457 Gases. Includes GC carrier gases, cali bration gases, safety equipment for gas cylinders, gas detectors, and line filters. 32 pp. Matheson 451
Air Dryer. Discusses the operation and special features of the Decade III heaterless-type desiccant air dryer. 12 pp. Pall Trinity Micro Corp. 440
Balances. Features balances from seven series, including mechanical and electronic analytical balances and tor sion, electronic and mechanical toploaders. 26 pp. Brinkmann Instruments, Inc. 452
Bio- and Chemiluminescence. Includes sections on applications, design fea tures and available accessories for the Chem-Glow photometer, which can be used to measure ATP and H 2 0 2 . 3 pp. American Instrument Co. 441
Plasticware. The fall 1979 edition cov ers plastic labware and clothing, and features a new disposable plasticware section. 56 pp. Cole-Parmer Instrument Co. 453
Gel Scanning. Outlines techniques for detecting sample materials separated by gel electrophoresis using a Cary 219 UV-Vis spectrophotometer equipped with a gel scanning accessory. 11 pp. Varian/lnstrument Group 442
Apparatus. Describes the company's complete line of laboratory products, including hot plates, muffle furnaces, temperature controllers and biomedical apparatus. 56 pp. Thermolyne Corp. 454
Sulfur Determination. Details a method for determining sulfur in coal and coke with the company's sulfur analyzer, usually in less than three min per sam ple. 4 pp. Fisher Scientific Co. 443
Teflon. The full-line 1979 edition offers an extensive line of PTFE Teflon prod ucts, including laboratory vessels, auto claves and digesters, membranes, fluid flow systems, and distillation equip ment. 52 pp. Berghof/America, Inc.
Two-Photon Spectroscopy. Provides a brief introduction to some of the experi mental methods and problems that are unique to this nonlinear spectroscopic method, and describes the use of a flashlamp pumped tuneable dye laser in two-photon spectroscopy. 9 pp. Chromatix 444
455
For more information on listed items, circle the appropriate numbers on one of our Readers' Service Cards
Better protection for costly LC columns New pre-packed guard cartridges make columns last longer. Inserted before your analytical column, these handy disposable guard cartridges remove harmful particles and strongly adsorbed compounds better than ever before. With this protection, total column costs decline dramatically. Unlike the old guard columns that you dry pack yourself with coarse par ticles, these cartridges are slurry packed with totally porous particles 10 μΐη in diameter. They becomea high-efficiency extension of the analytical column. And they have about 10 times the su rface area and sample capacity of the old pack-it-yourself guard columns. The cartridges fit in a reusable holder and operate at pressures to 7000 psi. They are manufactured by Brownlee Labs and distributed in the U.S. by Rheodyne. Cartridges cost $36 each purchased in a pack of two. Reusable holder is $120. Get the details now Contact Rheodyne, Inc., 2809 Tenth St., Berkeley, CA 94710. Phone (415) 548-5374.
RHEODYNE THE LC CONNECTION COMPANY CIRCLE 179 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 14, DECEMBER 1979 • 1451 A
