We NEW PRODUCTS

Data sheet de- scribes theTURBO2 trace ... supplies, HPLC prepacked columns, and instrumentation. ... equipment, including walk-in rooms, ovens, furna...
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Coal: The Energy Source of the Past and Future

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e are producing and consuming oil faster than we are finding it, and it's essential for the future to find stable, renewable, nonpolluting energy sources. Coal is a good candidate for an energy source to see us through from the decline of the oil economy to the advent of a widespread commercial technology based on new energy sources. This new book takes a look at coal in an enjoyable, easyto-read manner. You'll learn many aspects of this important energy source, including: • how coal is formed

• where coal is found in the world • how scientists study coal • how coal is mined • the many ways we use coal

• how we can use coal in the future It also covers the composition and properties of coal and the chemicals we get from coal. Also illustrated are the use of liquefaction and gasification processes to obtain synthetic fuels from coal. This book is for anyone who wants to learn about the origin, properties, and uses of coal. It will be of special note to legislators, environmental regulators, and economists. by Harold H. Schobert

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PRODUCTS

Manufacturers' Literature

Catalogs

Newsletter. Lab News features articles on concentrating a dilute enzyme fermentation product with a spiral cartridge system, reversed-phase chromatography of peptides and proteins, and quantitation of macromolecular binding with a micropartition system. 8 pp. Amicon 418

Standards. Catalog features radiolabeled, stable isotope-labeled, and unlabeled analytical standards, including chlorinated dibenzo-p-dioxins, chlorinated dibenzofurans, and chlorinated biphenyls. 16 pp. Wellington Laboratories and Chemsyn Science Laboratories 424

Distillation. Brochure features the Carlo Erba high-temperature simulated distillation automatic analyzer, a GC-based system for characterization of reduced crudes, distillates, lubricating oils, heavy residuals, and other petroleum-related products. 8 pp. Haake Buchler Instruments 419

Chromatography. Catalog includes sorbents, T L C / H P T L C plates and supplies, HPLC prepacked columns, and instrumentation. Also included are tables listing properties of HPLC sorbents and standard chromatographic parameters. 96 pp. EM Science 425

Electrochemistry. Application notes 117 and 175 describe the determination of fluoride and free cyanide in plating solutions. Apparatus, sample preparation, techniques, and typical results are discussed. Orion 420

Laboratory equipment. Catalog describes controlled environmental equipment, including walk-in rooms, ovens, furnaces, sterilizers, incubators, labware washers and dryers, illuminated test chambers, and baths. Hotpack 426

Oxygen analyzer. Data sheet describes the TURBO2 trace oxygen portable analyzer, which features three measuring ranges of ppm O2, a special span range for air calibration, and quick-disconnect gas line fittings. Teledyne Analytical Instruments 421

Instrumentation. Catalog features digital hand-held instruments, including data loggers, thermometers, p H / temperature meters, tachometers, anemometers, and combustion analyzers. 16 pp. Kane-May Measuring Instruments 427

Chromatography newsletter. Chrompack News, Vol. 14, No. 3, contains articles on the detection of soil disinfectant in sewage water, determination of halogenated hydrocarbons in landfill gas, and analysis of sterilized PVC medical devices for ethylene oxide. 8 pp. Chrompack Packard 422

Gases. Catalog features 59 different pure gases and hydrocarbon liquids in up to seven purity grades ranging from 99.0% to 99.9999% and more than 200 high-accuracy calibration gas mixtures. Technical data and safety information are included. Scott Specialty Gases 428

LC. Application notes 300 and scribe the room-temperature tion of organic acids in wine grape, apple, and orange juice polymer-based HPLC column. ton

Lab products. Catalog includes balances; baths; circulators; glassware; pumps; stirrers; timers; and products for chromatography, electrophoresis, and biotechnology. 40 pp. VWR Scientific 429

301 deseparaand in using a Hamil423

280 pages (1987) LC 87-11433 Clothbound: US & Canada $29.95. Export $35.95 ISBN 0-8412-1171-X Paperbound: US & Canada $19.95. Export $23.95 ISBN 0-8412-1172-8 Order from: American Chemical Society Distribution Office Dept. 60 1155 Sixteenth St.. N.W. Washington, DC 20036 or CALL TOLL FREE

800-227-5558 and use your crecdit card!

Model 2100 is a fully automated multielement atomic absorption spectrometer for flame, graphite furnace, and mercury/hydride analyses. The instrument and all major accessories are controlled by an Epson computer. Perkin-Elmer 402

400 A · ANALYTICAL CHEMISTRY, VOL. 60, NO. 6, MARCH 15, 1988