News • NMR Symposium. Aug. 3-6. Den ver, Colo. Contact: Francis P. Miknis, Laramie Energy Technology Center, Laramie, Wyo. 82071 • 4th International EPR Sympo sium. Aug. 3-6. Denver, Colo. Con tact: Gareth R. Eaton, Dept. of Chem istry, University of Denver, Denver, Colo. 80208. 303-753-2436 • 3rd International Meeting on Clinical Laboratory Organization and Management. Sept. 7-9. Vienna, Austria. Contact: Dr. Alfred Zettner, Division of Clinical Pathology, Uni versity of California Medical CenterSan Diego, 225 Dickinson St., San Diego, Calif. 92103 • Analytical Chemistry Related to Canada's Nuclear Industry. Oct. 19-21. St. Jovite, Quebec, Canada. Contact: R. M. Cassidy, General Chemistry Branch, Station 320C, Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario KOJ MO. 613584-3311, Telex 053-34555
Short Courses ACS Courses. These new courses will
Introducing α Reverse Phase HPLC Column independent of
pH. Now there's a Reverse Phase Resin column designed for sample separations where pH a n d salt concentrations are of concern. Hamilton's new PRP-1 is ideal for separat ing polar, semi-polar, a n d some neutral compounds by HPLC. And its hydrophobic qualities are equal or superior
be listed only once. For information on other ACS courses, see back issues and contact: Dept. of Educational Ac tivities, American Chemical Society, 1155 16th St., N.W., Washington, D.C. 20036. 202-872-4508 Project Management for Chemists and Chemical Engineers Washington, D. C. Jan. 5-6. Milton Rosenau, Jr. $325, ACS members; $395, nonmembers Thermal Methods of Analysis Washington, D.C. Jan 5-6. Wesley Wendlandt, Ilya Sarasohn. $325, ACS members; $395, nonmembers Chemical Carcinogenesis Washington, D.C. Jan. 5-6. Stephen Hecht, Gary Williams. $325, ACS members; $395, nonmembers Laboratory Safety and Health Washington, D.C. Jan. 5-7. Norman V. Steere. $435, ACS members; $495, nonmembers Electronics for Laboratory Instru mentation Atlantic City, N.J. March 6-7. Chris
to any C18 silica. Hamilton's PRP-1 is filled with highly rigid 10 urn macroporous resin spheres which c a n selectively adsorb both ionic a n d neutral solute species. These non-swelling adsorbents operate over a significantly broader pH range than conventional alkyl functional silicas. And their physical stability precludes
Enke, Howard Malmstadt, Stan Crouch. $435, ACS members; $495, nonmembers Practice of Modern Liquid Chro matography Atlantic City, N.J. March 6-8. J. J. Kirkland, Lloyd Snyder. $435, ACS members; $495, nonmembers Carbon-13 NMR Spectroscopy Atlantic City, N.J. March 6-8. George Levy, Paul Ellis. $435, ACS members; $495, nonmembers Capillary Gas Chromatography Atlantic City, N.J. March 7-8. Milos Novotny, Stuart Cram. $325, ACS members; $395, nonmembers Laboratory Automation: Micro-, Mini-, or Midi-Computers? Atlantic City, N.J. March 7-8. Ray mond Dessy. $325, ACS members; $395, nonmembers Current Chromatographic Tech niques— TLC/GC/HPLC Atlantic City, N.J. March 7-8. Harold McNair. $325, ACS members; $395, nonmembers
the need for g u a r d columns or concern for d a m a g e to the packing. The PRP-l's extended pH range accomplished without the use of expensive "Pic" reagents provides a powerful tool in qualitative chromato graphic analysis, because protic species c a n b e separat ed at different pH extremes. Applications for PRP-1
HAMILTON SEPARATES
News Priority Pollutants Atlantic City, N.J. March 7-8. Harold McNair, Marcus Cooke. $350, ACS members; $425, nonmembers Systems Engineering for the Ana lytical Laboratory Atlantic City, N.J. March 7-8. Tomas Hirshfeld. $325, ACS members; $395, nonmembers Atomic Absorption Spectroscopy Atlantic City, N.J. March 7-8. Theo dore Rains, Michael Epstein, Roy Koirtyohann. $325, ACS members; $395, nonmembers Writing for Results Atlantic City, N.J. March 7-8. Anne Eisenberg. $325, ACS members; $395, nonmembers
For Your Information The Barnes Analytical Product (iroup, formerly part of the Barnes Engineering Company, has become Barnes Analytical Division of Spectra-Tech Inc. At present, Spec tra-Tech offers all types of Barnes An
alytical products including crystals, gas and liquid sampling units, reflec tance units, and other infrared ac cessories. For more details contact the Barnes Analytical Division, SpectraTech Inc., 652 Glenbrook Rd., Stam ford, Conn. 06906. 800-243-9186. In Connecticut call 203-357-7055. Varian Associates, Inc. has recently published a new book entitled "Nu cleic Acid Constituents by High Performance Liquid Chromatogra phy." Written by Timothy Wehr in a practical, laboratory-oriented format, the book includes chapters on instru ments and accessories, identification and quantitation of sample compo nents, advantages and limitations of various techniques and equipment, and columns and mobile phases. The cost is $10 per paperback copy. For more information contact Ross Payne, Varian Associates, Inc., Instrument Group Marketing, 10060 Bubb Rd., Cupertino, Calif. 95014. 408-725-2950 CSI Corporation has announced a new analytical service that offers rapid, nondestructive, multielement
column include nucleosides, nucleotides, organic acids and bases, drugs, peptides, esters, halogenated phenols, and many others. And best of all. this extra ordinarily efficient 150 mm χ 4.1 mm column ( 22,000 theoretical plates/meter efficiency) is priced at $195. When your LC demands are for an exacting, depend
THE RESIN FROM THE SILICA.
analysis of air particulates collected on filters. Quantitative measurements of up to 30 elements per sample can be performed at the rate of at least 60 samples per day. Cost is $16.50 per sample plus $1.65 per element, with discounts available for large orders. For further details contact John Rhodes, Columbia Scientific Indus tries, P.O. Box 9908, Austin, Tex. 78766. 512-258-5191 Chemical Abstracts Service now offers on-line substructure searches of its Chemical Registry System through a new service called CAS ONLINE. Answers retrieved in a search will be displayed as two-dimensional struc ture diagrams, each accompanied by a molecular formula, CAS Registry number, and applicable stereochemi cal information. Searchers who do not have a graphics terminal may request off-line prints of the same informa tion. A search of the full file is priced at $77 plus connect-time charges. The fee for start-up of the service and training of one staff member is $250. For additional information contact CAS Customer Service, P.O. Box 3012, Columbus, Ohio 43210. 614-421-6940
able column, separate the resin from the silicas. The Hamilton PRP-1 Reverse Phase HPLC column. The superior alternate to derivitized silicas. For further information call toU free 800-048-5950 for the dealer nearest you. Or write Hamilton Company. P.O. Bo: 10030, Reno. NV 89510
HAMILTON
