Scientific Glass Engineering, Inc

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auto injector problems ?

Briefs

Correspondence Direct Measurement of Activation Energies: An Alternative Formulation of the Kinetics Problem

1074

SGE can help With syringes for H-P and Varian Auto Injectors

John W. Birks, School of Chemical Sciences, University of Illinois at Champaign—Urbana, Urbana, 111. 61801 Anal. Chem., 49 (1977) Pulsed vs. Continuous W a v e Atomic Fluorescence Spectrometry 1076 N. Omenetto, G. D. Boutilier S. J. Weeks B. W. Smith, and J. D. Winefordner,* Department of Chemistry, University of Florida, Gainesville, Fla. 32611 Anal. Chem., 49 (1977)

Aids for Analytical Chemists Simple Microreactor for Subtractive Gas Chromatography

1078

R. G. McKeag and F. W. Hougen,* Department of Plant Science, •University of Manitoba, Winnipeg, Canada R3T 2N2 Anal. Chem., 49 (1977) Microdetermination of Nitrogen in Seed Protein Extracts with the Salicylate-Dichloroisocyanurate Color Reaction 1080 Peter Felker, Department of Botany and Plant Pathology, Michigan State University, East Lansing, Mich. 48824 Anal. Chem., 49 (1977) Capacitor Discharge Temperature-Jump Apparatus with Nanosecond Capabilities 1081 Richard M. Reich, American Instrument Company, Silver Spring, Md. 20910, and John R. Sutter,* Chemistry Department, Howard University, Washington, D.C. 20059 Anal. Chem., 49 (1977)

Economical do-it-yourself needle and plunger repair kits available for all auto injector syringes. Our " B " series provides greater accuracy and minimizes needle plugging due to the plunger-inneedle design. 1, 5 and 10itl syringes available for most auto injectors. A complete line of laboratory syringes are available.

Scientific Glass Engineering, Inc. 2800 Longhorn Blvd. Suite 103 Austin, Texas 78759 AC 512/837-7190 CIRCLE 195 ON READER SERVICE CARD 586 A · ANALYTICAL CHEMISTRY, VOL. 49, NO. 7, JUNE 1977

Simplified Gas Chromatographic Method for the Determination of Chlorpheniramine in Serum 1085 James W. Barnhart* and James D. Johnson, Health and Consumer Products Department, The Dow Chemical Company, Indianapolis, Ind. 46268 Anal. Chem., 49 (1977) Precolumn Synthesis of Trimethylsilyl Derivatives of Aqueous Phosphate for Gas Chromatographic Analysis 1086 Richard H. Getty, Julia Stone, and Richard H. Hanson,* Chemistry Department, University of Arkansas at Little Rock, Little Rock, Ark. 72204 Anal. Chem., 49 1977)