Briefs
BEING BIG DIDN'T SAVE THE DINOSAUR EITHER
Analysis of Urine for 11-Nor-A9-tetrahydrocannabinol-9carboxylic Acid Using Sep-PAK Cartridges for Sample Cleanup 1492 George It. Nakamura*, Walter J. Stall, Ronnie G. Masters, and Victor A. Folen, United States Army Criminal Investigation Laboratory—Pacific, APO San Francisco, Calif. 96343 Anal. Chem., 57 (1985) Recovery of Dichlorobenzenes, Nitrobenzene, and Naphthalene during Evaporative Concentration 1494 Edward W. Matthews, U.S. Geological Survey, 6481-H Peachtree Industrial Blvd., Doraville, Ga. 30340 Anal. Chem., 57 (1985) Stabilized Gravimetric Standard for Sulfites and Sulfur Dioxide 1496 Knut Irgum, Department of Analytical Chemistry, University of Umeâ, S-901 87 Umeâ, Sweden Anal. Chem., 57 (1985) Vacuum-Tight Thin-Layer Spectroelectrochemical Cell with a Doublet Platinum Gauze Working Electrode 1498 X. Q. Lin and Κ. Μ. Kadish*, Department of Chemistry, University of Houston—University Park, Houston, Tex. 77004 Anal. Chem., 57 (1985) Thin-Layer Spectroelectrochemical Cell 1501 D. A. Scherson*, Shantha Sarangapani, and F. L. Urbach*, Case Center for Electrochemical Sciences and The Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106 Anal. Chem., 57 (1985)
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Simple Relationship for Calculating Backward to Forward Peak-Current Ratios in Cyclic Voltammetry 1503 Gino Bontempelli* and Franco Magno, Istituto di Chimica Analitica, Université de Padova, via Marzolo 1, 35100 Padova, Italy, and Salvatore Daniele, Dipartimento di Spettroscopia, Elettrochimica e Chimica Fisica, Université di Venezia, Dorsoduro 2137, 30123 Venezia, Italy Anal. Chem., 57 (1985)
