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GC/FT-IR. Brochure describes how the Model 5965A FT-IR detector for gas chromatography can be used with the Chemstation and Model 5890A GC to produce the combined analytical power of GC/FT-IR. Included are examples of difficult determinations such as separation of isomers. 8 pp. HewlettPackard 421
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Sample preparation. Applications notes describe more than 30 detailed methods for solid-phase sample preparation using Spe-ed extraction cartridges, including methods for pharmaceutical, toxicological, environmental, food, biological, clinical, and cosmetic applications. Applied Separations 422
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Conductivity. Brochure describes conductivity calibrator solutions that are available in nominal values of 1000, 10,000, 50,000, and 100,000 ,umhos/cm. Each solution is accompanied by instructions, including a reference table that lists temperature corrections. Yellow Springs Instruments 423
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Stable isotopes. Product brochure lists all stable elements from antimony-21 to zirconium-96 and the forms in which they are supplied. The isotope number, natural abundance, and available enrichment range is provided for each element. Special services such as higher enrichment capabilities, chemical purity enhancements, and custom synthesis also are described. 6 pp. U.S. Services 424
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Inorganic spectrometry. Catalog describes standards for plasma emission, X-ray fluorescence, optical emission, and atomic absorption spectrometry. Standards are available as solids or as custom-prepared solutions in a variety of elemental concentrations and matrices. 21 pp. SPEX Industries 426
Write, use the coupon, or call TOLL FREE 800-424-6747 to receive your ACS catalog covering all continuing education services. Yes! Please send me a free copy of the new ACS Professional Development Courses Catalog. Name Title Organization Address City, State, Zip. Mail coupon to: American Chemical Society Distribution Office 1155 Sixteenth Street, N.W. Washington, DC 20036
598 A · ANALYTICAL CHEMISTRY, VOL. 59, NO. 8, APRIL 15, 1987
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LC. Catalog describes a wide range of analytical and preparative columns for reversed-phase, normal-phase, and ion exchange chromatography. Also featured are a low-pressure pump, slurry packer, ultraviolet-visible detector, and strip chart recorder. 12 pp. DyChrom 427 Supplies. 1986-87 catalog features supplies for mass spectrometry, vacuum systems, gas chromatography, and liquid chromatography, as well as computer supplies, general laboratory supplies and tools, and plotter and graphic arts supplies. 408 pp. Scientific Instrument Services 429
