NEWS bined techniques in t h e analysis of nonvolatile organic compounds, especially polymers, compounds of biological interest, and simpler organic compounds will be discussed a t t h e symposium. Contributed papers in all aspects of t h e subject a r e invited. An a b s t r a c t of not more t h a n 500 words is required before J u n e 15. Financial assistance for travel will be available t o authors of papers accepted from abroad. All inquiries concerning this symposium should be directed to D r . G. Guiochon, École Polytechnique, 17, rue Descartes, F 75, Paris, 5, France.
Mass Spectrometry Data Centre T h e United Kingdom Atomic Energy Authority is setting u p a mass spect r o m e t r y d a t a centre a t t h e Atomic Weapons Research Establishment, Aldermaston, England. T h e work of t h e centre will include a n investigation into the use of computers for chemical analysis by matching a n d evaluating mass spectra a n d an investigation into modern methods of classifying a n d handling information so as t o produce a spectra reference a n d retrieval system. In addition, t w o services will become available t o mass spectrometry users throughout t h e world. These a r e : a mass spectra holding a n d information service a n d a world-wide index to compounds a n d materials already examined b y mass spectrometry. F o r a given compound or material t h e index will give information such as where to find its spectrum, its molecular weight and molecular formula, and possibly a bibliography.
WAVELENGTH IN MICRONS
YOU CAN SEE HOW PURE IT IS WHEN IT'S A FISHER "SPECTRANALYZED" SOLVENT That's because we record an ultraviolet or infrared absorption curve (or both) for every fresh lot of these ultra-pure compounds. You get a copy of the curve—like the one above for Lot 741618 of our A-19 "Spectranalyzed" Acetone—with every bottle you buy. You can see at a glance exactly where the transmittance is high enough to give you a "window" through which to make your determinations. There are now 18 high-purity "Spectranalyzed" solvents, transparent to ultraviolet or near-infrared or both. You'll find the list, with our purity standards spelled out for each compound, in Fisher Bulletin TD-132. For your free copy, write to Fisher Scientific Company, 100 Fisher Building, Pittsburgh, Pa. 15219. j. 3 87
FISHER SCIENTIFIC CO. Instruments, Apparatus, Furniture and Chemicals for Laboratories Complete stocks in all these locations: Atlanta · Boston · Chicago · Cleveland · Houston · New York Philadelphia · Pittsburgh · St. Louis · Union, N. J. · Washington · Edmonton · Montreal · Toronto · Vancouver See Buyers' Guide for all products/sales offices. Circle No. 57 on Readers' Service Card 68 A
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ANALYTICAL CHEMISTRY
Conference on Nuclear Radiation Measurement T h e Berkeley Nuclear Laboratories of t h e Central Electricity Generating Board, in collaboration with T h e Instit u t e of Physics a n d T h e Physical Society, are arranging a conference on t h e measurement of nuclear radiation. T h e conference will be held a t Berkeley from t h e 12th t o the 16th of September. T h e following topics will be included: The role of nuclear radiation measurements in a nuclear power program The measurement of neutron energy distribution in mixed radiation fields: measurements of ipithermal and fast neutron spectra; technique for high flux and low flux regions The measurement of gamma radiation : gamma ray spectrometry; energy flux and energy absorption The measurement of charged particles: spectrometry and dosimetry of alphaand beta-particles Absolute measurement: calibration a n d methods Nuclear data: requirements for future work
