PITTSBURGH CONFERENCE Oscar Menis, National Bureau of Standards, Washington, D. C. 20234. 9:25 Determination of Particle Size Distribution of Isolated Nonmetallic Inclusions in Steel. R. M. Raybeck, L. C. Pasztor, Jones and Laughlin Steel Corp., 900 Agnew Rd., Pitts burgh, Pa. 15230. THERMAL METHODS OF ANALYSIS Monday Evening—Pittsburgh Room J . L. Morley, P r e s i d i n g
7:30 Application of Differential Thermal Analysis to the Characterization of Urea Clathrates of Sodium Alkane Sul fonates. Arthur F. Findeis, Klaus D. W. Rosinski, Dept. of Chemistry, University of Alabama, University, Ala. 35486. 7:50 A Thermometric Method for the Analysis of Aqueous Solutions of Weak Organic Bases. C. H. Spink, M. Y. Spink, Juniata College, Huntington, Pa. 8:10 Conditions for Optimum TGA Sensitivity at Atmos pheric Pressure. Lee Cahn, Norbert C. Peterson, Cahn In strument Co., 7500 Jefferson St., Paramount, Calif. 8:30 Thermogravimetric Studies of Hydrogen-Deuterium Exchange at Different Temperatures and Pressures. A. V. Tets, H. G. Wiedemann, H. P. Vaughan, Mettler Instrument Corp., 20 Nassau St., Princeton, N. J. 08540. 8:50 A Versatile High Performance DTA Cell for Use to 1600° C. Paul F. Levy, William J. Fitzpatrick, E. I. du Pont de Nemours & Co., Inc., 2102 Northeast Blvd., Wilmington, Del. 19898. 9:10 A New High Sensitivity Differential Thermal Analyzer. Paul F. Levy, E. I. du Pont de Nemours & Co., Inc., 2102 Northeast Blvd., Wilmington, Del. 19898. NMR SPECTROSCOPY
Ring Proton. F. R. McDonald, A. W. Decora, G. L. Cook, Laramie Petroleum Research Center, Bureau of Mines, P. 0 . Box 3395, University Station, Laramie, Wyo. 7:50 Proton-Stabilized High Resolution Carbon-13 NMR Spectra. Kazuo Nakagawa, Taizo Uchiyama, Tatsumi Ohki, Shoji Murakami, Japan Electron Optics Laboratory Co., Inc., New Towyo Bldg., 3-2 Marunouchi Chiyodaku, Tokyo, Japan. 8:10 Quantitative Multicompound Analysis by NMR. Gary D. Haines, Charles F. Hammer, FDA Institute for Advanced Analytical Chemistry, Georgetown University, Washington, D. C. 20007. 8:30 NMR Spectral Correlations for a Series of Coumestans. Robert E. Lundin, Roland R. Spencer, Emanuel M. Bickoff, Western Utilization Research and Development Di vision, ARS, U. S. Dept. of Agriculture, 800 Buchanan St., Albany, Calif. 8:50 A Permanent Magnet, Proton-Locked All Nuclei High Resolution NMR Spectrometer. Yoshiharu Utsumi (Naka Works, Hitachi Ltd., Department of Electron Institute, Katsuta, Ibaraki, Japan); Paul A. Strauss, Perkin-Elmer Corp., Norwalk, Conn. 06852. 9:05 Heteronuclear Decoupling: 1 3 0-Ή and "'Ρ-^Η. Yoshi haru Utsumi (Naka Works, Hitachi Ltd., Department of Elec tron Institute, Katsuta, Ibaraki, Japan); Harry Agahigian, Perkin-Elmer Corp., Norwalk, Conn. 06852. 9:20 NMR Signal Enhancement Technique Used in Analy sis of Minor Constituents in Polymers. Hung Yu Chen, J. E. Field, Goodyear Tire and Rubber Co., Akron, Ohio 44316. TUESDAY, MARCH 7 GAS CHROMATOGRAPHY—DETECTORS AND INSTRUMENTS Tuesday M o r n i n g — U r b a n Room
Monday Evening—Terrace Room
Arthur Karmen,
N o r m a n C. L i , P r e s i d i n g
7:30 Solvent Effects on the NMR Spectra of Pyridines. Anomaly in the Differential Chemical Shift of the Alpha
Presiding
8:30 Oven Designs for Gas Chromatography: A Realistic Approach. M. W. Redmond, R. D. Condon, Perkin-Elmer Corp., Norwalk, Conn. 06852.
THE N.I.L. MILLIVOLT METER —FOR MEASURING SMALL POTENTIAL DIFFERENCES OF VERY HIGH INTERNAL RESISTANCE SOURCES . . . An unsurpassed instrument, superior to any available expanded scale pH meter, for measuring small differences of ion or anion concentration sensed by specific electrodes, such as Pungor, Beckman, Orion, Corning, etc.
• MILLIVOLT RANGES: Full scales of 10, 25, 100, 250, and 1,000 mv. • INPUT: Will accept positive or negative voltage. • INPUT IMPEDANCE: 101- ohms (presents no load to the electrode). • BUCKING VOLTAGE: A choice of positive or negative bucking voltage continuously adjustable from 0-1,000 mv, accurate to 0.25%. • RECORDER OUTPUT: For any ordinary millivolt strip chart recorder. Readings are unaffected by recorder and recorder ranges are pre-set on the Millivoltmeter. Bulletin *
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