NEW MERCURY DIFFUSION PUMP M
044/,
NEWS October 13 X-Ray and Electron Diffraction. R. L. GRIFFITH, Eastman Kodak Co., Rochester, Ν. Υ.
you get all these features in one pump
• COMPACT
— Built in f o r e p u m p condenser eliminates bulky outside condenser
•
October 20 Chemical Applications of Ultraviolet Spec troscopy. W. WEST, Eastman Kodak Co., Rochester, Ν. Υ.
E F F I C I E N T — Reaches ultimate vacuum o f 1 0~ 6 a t a speed of 1 0 liters per second
October 27 Emission Spectroscopy. R. J. MELTZER, Bausch & Lomb Optical Co., Rochester, Ν. Υ.
• ECONOMICAL-Uses
minimum amount o f mercury. Forepump vacuum spirals through w a t e r to prevent mercury from entering forepump
November 3 Infrared and Raman Spectrometry. F. MILLER, Mellon Institute, Pittsburgh, Pa.
• LOW PRICE —
November 10
1 unit — $ 6 0 . 0 0 each 3 units — $ 5 4 . 0 0 each
Magnetic Resonance and Microwave Methods. B. P. DAILEY, Columbia Uni versity, New York, Ν. Υ.
Cat. ÎOS-70S0
November 17 Potentiometric and Polarographic Meth ods. L. B.ROGERS, Massachusetts Institute of Technology, Cambridge, Mass.
Delmar
December 1
Scientific Laboratories
Conductometric and Capacitimetric Methods. P. J. ELVING, University of Michigan, Ann Arbor, Mich.
CHICAGO 5 1 , ILLINOIS
1551 NORTH CICERO AVENUE
For further information, circle number 32 A-l on Readers' Service Card, page 53 A
December 8 Instrumentation in Industry. R. REAMER, Taylor Instrument Cos., Rochester, Ν. Υ.
DIRECT DRIVE STIRRER
Trace Analysis Symposium
A direct drive,' medium duty stirrer for general laboratory use, incorporates a higher quality, continuous duty motor and 1 / 4 " true running chuck.
•
1/50 H.P. MOTOR
• RHEOSTAT SPEED CONTROL •
DOUBLE HOUSING FOR EXTRA FUME PROTECTION
• CONTINUOUS DUTY • STAINLESS STEEL MOUNTING ROD
•
FOR 110 VOLTS AC-DC
Cat. No. 93695-Slirrer STANDARD SCIENTIFIC 34 West 4th Street
$30
each
SUPPLY CORP. New York 12, Ν. Υ.
A L L THE A P P A R A T U S , EQUIPMENT, SUPPLIES, CHEMICALS A N D REAGENTS NEEDED T O RUN T O D A Y ' S M O D E R N LABORATORIES For further information, circle number 32 A-2 on Readers' Service Card, page 53 A
32 A
I
A Symposium on Trace Analysis will be held November 2 to 4 a t t h e Academy of Medicine, New York, Ν . Υ . John H . Yoe, University of Virginia, Char lottesville, Va., is chairman, and H e n r y J. Koch, Jr., Sloan-Kettering I n s t i t u t e , New York, Ν . Υ., is coordinator. At tendance a t t h e meeting, which is being sponsored b y t h e Rockefeller F o u n d a tion, is by invitation only. T h e symposium has a threefold pu rpose : to bring together authorities in scientific disciplines related to the de termination of trace constituents in industrial, agricultural, biological, and medical fields; to consider which tech niques are directly applicable t o t h e various fields of investigation; and t o discuss t h e separation and concentra tion of millimierogram quantities of metals and t h e problem of contamina tion hazards. A t o t a l of 21 papers will be presented covering such topics as chromatography, ion exchange, extrac tions and separations, microscopy, spot testing, colorimetry, fluorimetry, spec t r o m e t r y , p h o t o m e t r y , potentiometry, coulometry, polarography, amperometry, spectroscopy, micrography, neutron activation analysis, a n d micro biological techniques. ANALYTICAL
CHEMISTRY
