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NEWS Charles Ν. Reilley, Dept. of Chemistry, University of North Carolina, Chapel Hill, N. C. 27514. 10:35 Current Distribution and Mass Transfer in Electro­ chemical Systems. John S. Newman, Dept. of Chemical Engineering, University of California, Berkeley, Calif. 94720. 11:15 The Effect of Fundamental Properties of Electrode Materials on Electrocatalysis. J . O'M. Bockrls, A. Damjanovic, R. J . Mannan, The Electrochemistry Lab., Uni­ versity of Pennsylvania, Philadelphia, Pa. 19104. Section C SYMPOSIUM ON NUCLEAR METHODS OF CHEMICAL ANALYSES (Joint with Division of Nuclear Chemistry and Technology) H. L. Finston, Presiding

11:30 The Radiometric Titration of Trace Amounts of Zinc. W. O. McSharry, M. Cefola, Fordham University, Bronx, N. Y.; A. R. Landgrebe, J . R. DeVoe, National Bureau of Standards, Gaithersburg, Md. 11:45 Determination of Sub-Microgram Amounts of Bro­ mine in Natural Silicates by Activation Analysis. W. D. Ehmann, Dept. of Chemistry, University of Kentucky, Lexington, Ky.; K. W. Lieberman, Dept. of Legal Medi­ cine, Harvard University Medical Center, Boston, Mass. Section D THE CHROMATOGRAPHY-PHYSICAL INTERFACE

CHEMISTRY

(in honor of J. Calvin Giddings, winner of the ACS Award in Chromatography and Electrophoresis) (Joint with Division of Physical Chemistry)

9:00 Helium-3 Activation Analysis: Simultaneous Meas­ urement of Oxygen-16 and Oxygen-18 Isotopes. Sam­ uel S. Markowitz, James F. Lamb, Diana M. Lee, Law­ rence Radiation Lab. and Dept. of Chemistry, University of California, Berkeley, Calif. 94720. 9:30 Precision Photometric Analysis in the Ultraviolet Using a Radioisotopic Light Source Photometer. H. H. Ross, Oak Ridge National Lab., P. 0 . Box X, Oak Ridge, Tenn. 37830. 10:00 Separation of Fission Products, Neutron Induced Ac­ tivities and Actinides in a Soil Matrix by Ion Exchange. Mark M. Zeligman, Fernando Bazan, Lawrence Radia­ tion Lab., P. 0 . Box 808, Livermore, Calif. 94550. 10:35 Radioisotopic Dilution for Trace Chemical Analysis. A. R. Landgrebe, J . R. DeVoe, L. T. McClendon, Nation­ al Bureau of Standards, Gaithersburg, Md. 10:55 Differential Controlled-Potential Coulometry Utiliz­ ing Radioisotopic Tracers. P. A. Pella, A. R. Landgrebe, J. R. DeVoe, National Bureau of Standards, Gaithersburg, Md. 11:15 Rapid Carrier-Free Method for the Radiochemical Determination of Cesium-137. J. J. McCown, E. J. Ellenburg, Westinghouse Electric Corp., Astonuclear Lab., P. O. Box 2028, Jackass Flats, Nev.

R. A. Keller, Presiding

9:15 Application of Nonequilibrium Theory to Gas Chroma­ tography. Paul D. Schettler, Dept. of Chemistry, Antioch College, Yellow Springs, Ohio; J . Calvin Giddings, Dept. of Chemistry, University of Utah, Salt Lake City, Utah 84112. 9:40 Interactions Responsible for the Selective Adsorp­ tion of Polar Molecules on Alumina. Comparisons of Ad­ sorption on Alumina and Silica. Lloyd R. Snyder, Union Research Center, Union Oil Co. of Calif., P. 0 . Box 76, Brea, Calif. 10:30 The Determination of the Free Gas Volume (V„) in Gas-Solid and Gas-Liquid Chromatographic Columns and Some Consequent Thermodynamic Measurements. Shigehiko Masakawa, Riki Kobayashi, James Alyea, Dept. of Chemical Engineering, Rice University, P. O. Box 1892, Houston, Texas 77001. 10:30 The Thermodynamic Study of Dilute Solutions in Liquid Crystalline Solvents by Means of Gas-Liquid Chromatography (GLC). Daniel E. Martire, Peter A. Blasco, Patrick F. Carone, Lawrence C. Chow, Henry T. Vicini, Dept. of Chemistry, Georgetown University, Wash­ ington, D. C.

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