Replace y o u r obsolete %Transmittance Instrument w i t h a low-cost, direct reading. Linear Absorbance Colorimeter f r o m G L E N C O FOR O N L Y $275 we offer: • Direct concentration or absorb ance readout • N a r r o w Band Pass ( 7 n m ) • 4 0 0 - 1 1 0 0 N M Range • Broad absorbance range (to over 2 Absorbance Full Scale) • Fixed Pour-Drain Cell O p t i o n These advanced technology instru ments can be used in all methodologies where % Τ models are being utilized in the visible wavelength range. They are offered in the following models:
MODEL 5 3 A - T h i s model allows the user to read sample directly in units of concentration (0 to 1 units in .02 unit divisions) $275.00
10:50 Recent Developments in Spectral and Chemical Interferen ces in Flame Spectrometric Meth ods of Analysis. M. L. Parsons, Arizo na State U 11:10 Paper title to be announced. G. Hieftje, Indiana U 11:30 Anion Determination by In hibition Effects in Emission Flame Spectroscopy. J. R. Sand, C. O. Huber, U of Wisconsin-Milwaukee 11:50 Atomic Absorption Analysis with Graphite Furnace Using Ma trix Modification. R. D. Ediger, Perkin-Elmer Corp. 12:10 Matrix Management in Flameless Atomic Absorption (Car bon Rod Atomizer)—Temperature Control and Background Correc tion. R. L. Stux, C. J. Rowe, Varian Techtron, Australia 12:30 Analyzing High Solids Sam ples by Atomic Absorption with Carbon Rod Atomizer. R. L. Stux, C. J. Rowe, C. Parker, Varian Techtron, Australia 12:50 Determination of Less Vola tile Metals by Atomic Absorption, Using High-Temperature Micro sampling Cup Technique. D. G. Mitchell, A. F. Ward, Κ. Μ. Aldous, New York State Department of Health 1:10 Image Dissector Echelle Spectrometer—A Rapid Wave length Access Spectrometer with Single Photon Counting. A. Danielsson, Analytica AB, Sweden Electroanalytical Chemistry
MODEL 53A-FC - Same as 53A but equipped with a pour-drain cell for repetitive readings of samples utilizing the same cell $355.00
MODEL 52A - Same as Model 53A b u t w i t h o u t concentration pot. Reads sample directly in absorbance units. (0 to 2 O.D. in .05 O.D. Divisions) $275.00 All models are equipped to accept optional adaptors for all standard glass tubes from 10mm to 20mm and for square cuvettes. For additional information or to discuss application details, write or call Glenco Scientific, Inc. 2802 White Oak Dr., Houston, Tx.77O07 Phone: 713/861-9123 TWX 910-881-6397
GLENCO
Chairman: R. A. Osteryoung, Colorado State U
10:30 Bioanalysis with Membrane Electrode Probes. G. A. Rechnitz, State University of New York 11:00 Differential Pulse Polarographic Determination of 1,4-Benzodiazepines in Biological Fluids. M. A. Brooks, J. A. F. de Silva, Hoff mann-La Roche Inc. 11:30 Electroanalytical Chemistry in Ocean Research. D. N. Hume, MIT 12:00 Pulse Stripping Analysis— Theory and Practice. R. A. Oster young, Colorado State U 12:30 Cyclic Voltammetry of Adenosine-5'-Monophosphate and Its Iron Complexes in DMF. M. S. Spritzer, Villanova U; P. Kanatharana, Chulalongkorn U, Thailand Moving Infrared from " L a b " to "Line" Chairman: P. A. Wilks, Wilks Scientific Corp.
10:30 Role and Responsibilities of Infrared Spectroscopist in Moving Analyses into Plant. D. S. Lavery, Wilks Scientific Corp. 10:50 Sample Handling Problem in Continuous Liquid Analysis. P.
CIRCLE 8 7 O N READER SERVICE CARD
1008 A · ANALYTICAL CHEMISTRY, VOL. 46, NO. 12, OCTOBER 1974
A. Wilks, Jr., Wilks Scientific Corp.; A. Bartz, Dow Chemical Co. 11:10 Use of Portable Variable Path Length IR Gas Analyzer Dur ing Setting-Up Stage of Gas-Phase Reactor. J. Elliott, EXXON Research & Engineering Co. 11:30 Contaminant Analyzer for Aircraft Oxygen Systems. K. G. Ikels, Brooks Air Force Base 11:50 Continuous Analysis of Vis cous Materials. D. G. Burr, General Electric Co. 12:10 Automatic Infrared Analy sis. E. G. Brame, Jr., Du Pont Thursday Morning, Nov. 21
9:00 Plenary Lecture: Hasler Award Address—SAS: General Problem of Calibration in (Spectro)chemical Analysis. H. Kaiser, Institute for Spectrochemistry and General Spec troscopy, Germany Hasler Symposium Chairman: J. Baldwin, Society for Applied Spectroscopy
10:30 Trace Simultaneous Mul tielement Analyses by Optical Emission Spectroscopy—Stagnant or Pregnant? (with Apologies to A. Walsh). V. A. Fassel, Iowa State U 11:30 Future of Analytical Spectros copy. R. K. Skogerboe, P. J. Lamothe, G. Bastiaans, D. L. Dick, Colorado State U Mass Spectrometry in Industry and Related Topics Chairman: T. L. Pugh, Du Pont
10:30 Applications of Mass Spec trometry to Problems in Tobacco Industry. N. Einolf, Philip Morris 11:00 Applications of MS in Copy ing Industry. F. A. Elder, Xerox Corp. 11:30 Application of Mass Spec trometry to Study of Epoxy Resins. M. A. Grayson, R. L. Levy, D. L. Fanter, McDonnell Douglas Corp. 12:00 Mass Spectrometry at Hoff mann-La Roche Inc., Nutley, N.J. F. M. Vane, W. Benz, C. G. Scott, Hoffmann-La Roche Inc. Enthalpimetric Analysis Chairman: J. Jordan, Pennsylvania State U
10:30 Progress in Thermometric and Enthalpimetric Analysis. L. S. Bark, U of Salford, England 11:00 Novel Applications for Tem perature and Flow Sensitivity of Thermistors in Analysis and Hema tology. P. W. Carr, L. D. Bowers, W. D. Bostick, E. B. Smith, U of Georgia 11:30 Titration Calorimetry: Some Recent Advances in Instrumenta tion and Applications to Biological Systems. R. M. Izatt, L. D. Hansen,
