NEWS Persons planning to submit papers for consideration should send four copies of a 200-word abstract to the program chairman by Jan. 3. These, as well as any requests for information, should be addressed to Edward C. Freiling, Code 932, U. g. Naval Radiological Defense Laboratory, San Francisco 24, Calif.
AAS Symposium on Spectroscopy in Chicago Next June The Ninth Annual Symposium on Spectroscopy, sponsored by the American Association of Speetrographers, will be held at the Pick-Congress Hotel, Chicago, June 9 to 11, 1958. Papers are invited in emission spectroscopy, flame spectroscopy, x-ray spectrograph^, infrared, near-infrared, visible, and ultraviolet spectroscopy. Deadline for submission of papers is February 2, 1958. The symposium will be accompanied by an exhibit of new instrumentation. Further information may be obtained from Henry J. Hettel, Armour Research Foundation, 10 West 35th Street, Chicago 16, 111.
Papers Invited for Geneva Atomic Energy Meeting The United States Atomic Energy Commission announces the procedure for submitting proposed papers for the Second International.Congress on Peaceful Uses of Atomic Energy. The Commission has been made responsible by the Department of State for U. S. participation in the conference, to be held at Geneva, Switzerland, Sept. 1 to 13. Authors planning to present papers should submit abstracts for review and consideration no later than January 1, 1958. These should be as informative as possible, but should be no longer than 500 words. Abstracts are to be sent in an original and six copies, and there are specific rules for format. The conference will consist of 11 general sessions and 56 parallel technical sessions. Of particular interest to analytical chemists are parallel technical sessions 1 3 and 1-4, on basic applications of chemistry in atomic energy. Here will be included papers on analytical procedures in atomic energy. Abstracts should be submitted to the Technical Director, Office for International Conference, Atomic Energy Commission, 1901 Constitution Ave., N.W., Washington 25, D. C. Further information may also be obtained from the same office.
" W h y are sampling m e t h o d s so important in Gas Chromatography?" Because accurate quantitative analysis depends on quick, positive introduction of precise quantities of sample into the chromatographic column. Unless the entire sample is introduced instantaneously and vaporized immediately, inaccurate chromatograms will result. The Beckman GC-2 Gas Chromatograph analyzes gases and liquids with boiling points up to 350°C. With the unique Beckman Gas Sampling Valve, the GC-2 provides sample reproducibility up to ± 0 . 1 % for gases; the new Liquid Sampler injects liquid samples with reproducibility of ± 0 . 5 % to ± 0 . 1 % . For complete versatility, the GC-2 still retains provision for standard syringe-type sample injection. The Gas Sampling Valve and the Liquid Sampler permit samples to be introduced at uniform, almost-instantaneous rates in precise amounts — 1 cc to 10 cc of gas and 0.005 to 0.05 cc of liquid. A special heated inlet also helps eliminate rate-of-addition problems by raising sample temperature above column temperature, vaporizing liquids instantly. With improved sample introduction equipment, and by precise control of flow and temperature, the Beckman GC-2 can p r o d u c e - a n d reproduce—chromatograms unequalled in resolution and reliability. "WHAT ABOUT LOW TEMPERATURE ANALYSIS?"
The GC-2 is. of course, ideal for working with high or low temperature boilers; but, for gases and liquids with boiling points under 80°C, the Beckman CC-1 is available at half the price of the GC-2. The G C - 1 - w i t h the Gas Sampling Valve and the Liquid Sampler —can accurately solve almost any fixedgas or low-boiling-point-liquid problem. For more information on gas chromatography or the Beckman GC-1 or GC-2, write for Data File L-38-I5
Beckman®
Beckman GC-2
Scientific Instruments
Division
2500 Fullerton Road, Fullerton, California a division of Beckman Instruments, Inc. For further information, circle number 43 A on Readers' Service Card, page 83 A
VOL. 29, NO. 12, DECEMBER
1957
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