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Cambridge Isotope Labs your supplier for 13 12
alyzer. Sensitivity, reaction chemis tries, and applications are discussed. 12 pp. Hewlett-Packard 423 Peptides. Application note DS-786 discusses the separation of α-, β-, and γ-endorphins and their des-Tyr fragments by capillary electropho resis. Beckman Instruments 424
C & C
in the 90's announces: (CasribtoaiblLS and Carbon-12 NOW available from the world's largest facility for the separation of carbon isotopes 12,
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Spectrovac 2000 is a 1-tn vacuum spectrometer designed for ferrous and nonferrous metals analysis. Precision of 0.5% RSD is typical for elements with concentrations >1%. Baird 417
1990 ACS Annual Report. Free publication describes ACS activities and programs supporting the science and profession of chemistry. A mem bership profile and a treasurer's re port are included. 32 pp. 418 Chemistry Teacher Education. Free booklet includes basic guide lines for the preparation and con tinuing education of high school chemistry teachers and recommen dations for mechanisms of implemen tation. 16 pp. 419
v>> in Kg quantities at 99.95 to 99.999% enrichments
Software
Ks gases, intermediates & a complete line of labeled compounds and biochemicals
Chromatography. Pyramid Chro matography Manager is a userconfigurable data acquisition and analysis system that provides multi tasking capabilities, full GLP compli ance, and direct control of most HPLC and GC components or sys tems. Axxiom Chromatography 420
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Please call now for % quotation on labeled starting materials or a custom synthesis. ********** Please inquire about our D, N, & Ο labeled compounds. For Your Free 1991-1992 Catalog Please Contact:
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Chemicals. EMCIS, designed for use with IBM PCs and compatible computers, provides cross-referenced regulatory, storage, disposal, MSDS, worker safety, and emergency re sponse information for more than 4000 chemical products. Data on physical and chemical properties are included. EM Science 421 Statistics. Interactive Cluster Anal ysis (ICA) is a generic tool for classi fying members of a test population using nonhierarchical clustering analysis techniques. The software handles up to 25 attributes and 1000 cases. Dynacomp 422
Manufacturers' Literature Amino acid analysis. Brochure de scribes amino acid analysis using the AminoQuant Series II amino acid an
688 A · ANALYTICAL CHEMISTRY, VOL. 63, NO. 13, JULY 1, 1991
Chromatography. Retention Times, Vol. 14, No. 1, includes information on GC instrumentation, cholesterol analysis, and purge-and-trap con centrators. 4 pp. Tremetrics 425
Catalogs Instrumentation. Catalog features instruments for spectroscopy, chro matography, environmental analysis, and testing and measurement. Spec ifications and technical data are pro vided. 32 pp. Shimadzu 426 Laboratory equipment. Catalog lists immersion circulators; heating, refrigerated, and programmable baths; circulation systems; tempera ture cyclers; biological stirrers; and density gradient columns. 20 pp. Techne 427 Water analysis. Catalog features instruments, probes, and accessories for wastewater analysis and for field monitoring of groundwater and sur face water. 12 pp. YSI 428 Biomedical research. Catalog in cludes diagnostics, chromatography and electrophoresis equipment, monomers and polymers, and micros copy accessories. Polysciences 429 Isotopes. Catalog features enriched stable isotopes and stable-isotopelabeled compounds, including isotopic gas mixtures, NMR solvents, and deuterium-, 13C-, 15N-, and 1 8 0 labeled compounds. 80 pp. Isotec 430 Separations. Catalog includes elec trophoresis equipment, microscopes, centrifuges, forensic microtubes, fil ters, balances, and fume hoods. 32 pp. Whatman LabSales 431
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