NEW required reading from Waters — the Liquid Chromatography People
LC Packing Materials and Packed Columns Catalog. A complete descriptive price list of Waters Associates' wide selection of column packing materials for high speed/high resolution chromatography. Ask for DS013. CIRCLE 2 3 2 O N READER SERVICE CARD
Separation and Identification of Nucleic Acid Constituents. 4 pgs. Describes the LC separation of DNA and RNA and their constituents — purine and pyrimidine bases, nucleosides and mononucleotides. Ask for AN 147. CIRCLE 233 ON READER SERVICE CARD
Molecular Weight Distribution of Polymers.
A NEW WAV TO TELL GOOD F R O M BAD
New Way to Tell Good from Bad. This 12 pg. brochure describes various exclusion chromatography methods used to characterize rubber, paints, resins, oil and other complex polymer materials. Ask for AN 163.
CIRCLE 2 3 4 O N READER SERVICE CARD
free
from
WATERS ASSOCIATES 137 Maple Street. Milford, Ma 01757 Telephone (617) 478-2000 The Liquid Chromatography People
News and Views Air Pollution—Dynamics and Control New York, N.Y. Sept. 17-19. August T. Rossano and Hal B. Cooper. $175, ACS members; $200, nonmembers Laboratory Safety—Recognition and Management Hazards Indianapolis, Ind. Oct. 3-5. Norman V. Steere and Maurice Golden. $180, ACS members; $205, nonmembers Intermediate NMR Spectroscopy Indianapolis, Ind. Oct. 4-5. Joseph B. Lambert. $130, ACS members; $150, nonmembers Interpretation of Mass Spectra Indianapolis, Ind. Oct. 4-5. Don C. DeJongh. $130, ACS members; $150, nonmembers Modern Liquid Chromatography Indianapolis, Ind. Oct. 4-5. Lloyd R. Snyder and J. J. Kirkland. $155, ACS members; $175, nonmembers Column Selection in Gas Chromatography Indianapolis, Ind. Oct. 10-11. Harold M. McNair and Walter Supina. $110, ACS members; $130, nonmembers Intermediate Chromatographic Systems—Maintenance and Troubleshooting Washington, D.C. Oct. 11-12. M.P.T. Bradley. $145, ACS members; $165, nonmembers Carbon-13 NMR Spectrometry Pittsburgh, Pa. Oct. 22-24. George C. Levy. $180, ACS members; $205, nonmembers Polarized Light Microscopy Bedford College, Regents Park, London. Sept. 1-5. Contact: Registrar, McCrone Research Institute, 2 McCrone Mews, Belsize Lane, London, NW3 5BG, England Applied Polarized Light Microscopy Bedford College, Regents Park, London. Sept. 8-12. Contact: Registrar, McCrone Research Institute, 2 McCrone Mews, Belsize Lane, London, NW3 5BG, England Photomicrography Bedford College, Regents Park, London. Sept. 15-19. Contact: Registrar, McCrone Research Institute, 2 McCrone Mews, Belsize Lane, London NW3 5BG, England
840 A · ANALYTICAL CHEMISTRY, VOL. 47, NO. 9, AUGUST 1975
Simplex Optimization in Research and Development University of Houston, Houston. Sept. 22-24. S. N. Deming, S. L. Morgan, and M. R. Willcott. $250. Contact: S. N. Deming, Department of Chemistry, University of Houston, Houston, Tex. 77004. 713-749-4809 or 749-2612
For Your Information Technicon Industrial Systems, Tarry town, N.Y., has commenced publication of a quarterly newsletter containing information on the latest developments in automated analysis for the environmental sciences. The first issue features articles on the status of water quality methods and an update on automated analytical instrumentation at the Pennsylvania Department of Environmental Resources. To receive the newsletter, write to Environmental Newsletter, Technicon Industrial Systems, Tarrytown, N.Y. 10591. Corning Medical Products, Corning, N.Y., has acquired exclusive worldwide marketing and manufacturing rights for the complete line of densitometers made by Clifford Instruments, Inc., of Natick, Mass. Update Instrument, Inc., P.O. Box 5177, Madison, Wis. 53705, is a new company which provides electronic instrumentation that can be used in connection with Beckman DU and DU-2 spectrophotometers. The company can also provide other products and services for other electronic research instrumentation. H e w l e t t - P a c k a r d Co., a principal maker of Electron Spectroscopy for Chemical Analysis (ESCA) equipment with advanced monochromatized X-ray techniques, offers for the first time analytical services. Submitted samples will be analyzed, and a confidential report with spectra given to customers. Three kinds of information about sample surfaces can be supplied: with the exception of hydrogen, every element in the periodic table is identified; relative amounts of these elements and differences between a reference and sample; also, the oxidation state of most elements. Typical charges start from $65/sample for survey spectra. Service is available from the Scientific Instruments Division at 1601 California Ave., Palo Alto, Calif. 94304.
