CONTRIBUTED ARTICLES Scientific Communications Gas Chromatographic
Analysis of Polymers
Oxidative Degradation. R . G. SCHOLZ, BEDNARCZYK, AND T E R R Y YAMAUCHI
Diphenylpicrylhydrazyl as an Organic Analytical Reagent in the Spectrophotometric Analysis of Phenols. 6 . J. Papariello and Μ . Α . Μ . Janish 211
after JAMES 331
Elastomer Identification by Ultraviolet Spectrometry G. ROZENTALS
334
Spectrofluorometric Trace Determination of Trivalent Samarium, Europium, Terbium, and Dysprosium by Sodium, Tungstate Solution. Giulio Alberti and M. A. Massucci 214
Atomic Absorption with Induction-Coupled Plasmas. R. H . W E N D T AND V . A. FASSEL
337
.Modulation Technique for Neutron Capture Gamma Ray Measurements in Activation Analysis. T. L. Isenhour and G. H. Morrison
Isenhour and G. H. Morrison
1 69
Cyclic Voltammetry of Some Iron Porphyrin Com plexes. D. G. Davis and D. J. Orleron
1 79
Reduction of O x y g e n
221
Fractionation and Characterization of Low Molecular Weight Asphaltic Hydrocarbons. D. E. wetmore, c. K. Hancock, a n d R. N . Traxler
225
Isolation and Identification of Ci 3 to O i Alkylnaphthalenes, Alkylbiphenyls, and Alkyldibenzofurans from the 270° to 305° C. Dinuclear Aromatic Fraction of Petroleum. F. F. Yew and B. J. Mair . . .
231
Gas Chromatographic Analysis of Solvent Used in Reactor Fuel Reprocessing and Fission Product Recovery. M. H. Campbell
237
1 07
ilnfluence of Spherical Diffusion on the Alternating Current Polarographic W a v e . J. R. Delmastro and D. E. Smith
sulfoxide.
Spectrophotometric Determination of Ruthenium with 1 -NitroSO-2-Naphthol. Gwendolyn Kesser, R. J. Meyer, a n d R. P. Larsen 1 02
Determination of Boron by Thermal Neutron Activation Analysis Using a Modulation Technique. T. L.
Polarographic
Near-Infrared Method for Analysis of Block and Random Ethylene-Propylene Copolymers. R. M. Bly, P. E. Keener, and B. A . Fries 2 1 7
in Dimethyl-
E. L. Johnson, Karl H. Pool, and R. E. Hamm .
1 83
Inverse Gas-Liquid Chromatography. A New Ap proach for Studying Petroleum Asphalts. T. C. Davis, J . C. Petersen, a n d W . E. Haines . . . 241
Continuous EDTA Titrations a t Low Concentrations. W. J. Blaedel and R. H. Laessig
1 86 Solute Adsorption at the Gas-Liquid Interface in GasLiquid Chromatography. D. E. Martire
244
Spectrophotometric Determination of Low Concentra tion of Vanadium in Petroleum with Hematoxylin. Elizabeth M a c m i l l a n a n d B. W . S a m u e l . . . .
250
Rapid Determination of Lead-210 and Polonium-210 in Environmental Samples b y Deposition on Nickel. R. I . Blanchard
189
Proton Nuclear Magnetic Resonance Studies of Several Polyalcohols, Hydroxy Acids, a n d Derivatives o f D-Gluconic Acid.
Mass
Spectrometric
D. T. Sawyer and J. R. Brannan . . . . 1 9 2
Analysis of Boron Trifluoride.
J. C. Horton
1 98
Calibration Techniques for X-Ray Fluorescence Analysis of Thin Nickel-Chromium Films. N. Spielberg and G. Abowili 200
Third International Symposium on Advances in Gas Chromatography Evidence for Turbulence and Coupling matographic Columns. J.H.Knox
in Chro 253
Electrostatic Interactions in Gas-Solid Chroma tography. James King, Jr., and S.W.Benson
261
Formamide as a Stationary Phase in Gas Chroma tography. Josef Novak a n d Jaroslav Janak . . . . .
265
Use of a Continuous Source in Flame Fluorescence Spectrometry. Claude Veillon, J. M. Mansfield, M. L. Par sons, and J. D. Winefordner
204
Preconcentration a n d Spectrographic Determination of Ultra-trace Metallic Impurities in Potassium Chloride.
M. C. Farquhar, J. A. Hill, and M. M. English .
208
Support Effects on Chromatography.
Retention Volumes in Gas Paul Urone and J. F. Parcher . . . 2 7 0
VOL. 38, NO. 2, FEBRUARY
1966
•
3 A
CONTRIBUTED ARTICLES Turbulent Flow Chromatography. A New Approach to Faster Analysis. Victor Prelorius and T. W. Smuts
274
Aerogel Columns in Gas Chromatography, Halasz and Hans-Otto Gerlach
281
istvan
Flame Ionization Detector for Liquid-Liquid Chromatography. Arthur Karmen
Application o f Adsorption Electroanalysis t o the Trace Determination o f Tetra buty la mmonium Ion. S. L. Phillips 343 286 G a s Chromatographic Identification a n d Determination of Barbiturates. H. F. Martin and J. L. Driscoll 345
Time Averaged Proton Magnetic Resonance Analysis of Micro Samples from Open-Tube Gas Chromatographs.
M e t h o d o f Proportional Equations f o r Analysis of Closely Related Mixtures b y Differential Reaction Rates W h e r e Concentration of Reagent
