Briefs Determination of Trace Amounts of Chlorinated Phenols in Human Urine by Gas Chromatography 1774 Thomas R. Edgerton,* Robert F. Moseman, Emile M. Lores, and Lynn H. Wright, Environmental Toxicology Division, Health Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, N.C. 27711 Anal. Chem., 52 (1980)
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Determination of Carbon Content in Carbides by an Elemental Analyzer 1777 Peter P. Borda* and Peter Legzdins, Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Y6 Anal. Chem., 52 (1980) Two-Way Valve for Control of Liquid Pressures up to 50 Kilograms per Square Centimeter 1778 Kenneth E. Collins* and Carol H. Collins, Instituto de Quimica, Universidade Estadual de Campinas, Caixa Postal 1170. 13.100 Campinas, SP, Brasil Anal. Chem., 52 (1980) Filter Material for Sampling of Ambient Aerosols 1779 D. F. Leahy,* M. F. Phillips, R. W. Garber, and R. L. Tanner, Brookhaven National Laboratory, Associated Universities Inc., Upton, N.Y. 11978 Anal. Chem., 52 (1980) Determination of Silicon in Thin-Film Aluminum on a Silicon Substrate 1780 D. R. l'allant, Sandia National Laboratories, Albuquerque, N.M. 87185 Anal. Chem., 52 (1980) Heating Profile Curves for Resistively Heated Filament Pyrolyzers 1782 Gregory Wells, Kent J. Voorhees,* and Jean H. Futrell, Departments of Material Science and Engineering, and Chemistry, University of Utah, Salt Lake City, Utah 84112 Anal. Chem., 52 (1980) Heavy-Liquid Separation and X-ray Diffraction Analysis of Airborne Particulates 1784 Tsutomu Fukasawa,* Masaaki Iwatsuki, Susumu Kawakubo, and Kiyoshi Miyazaki, Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Takeda-4, Kofu 400, Japan Anal. Chem., 52 (1980)
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Comparison of Near-Infrared Reflectance and Photoacoustic Spectra of Grain Samples 1787 George Henderson and Melton F. Byrant,* Department of Chemistry, University of Georgia, Athens, Ga. 30602 Anal. Chem., 52 (1980) Collision Induced Dissociation Apparatus with Quadrupole Field Collision Cell for Mass Spectrometry-Mass Spectrometry 1790 M. W. Siegel, Extranuclear Laboratories, Inc., Pittsburgh, Pa. 15238 Anal. Chem., 52 (1980)
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1116 A • ANALYTICAL CHEMISTRY, VOL. 52, NO. 11, SEPTEMBER 1980
