News -uv-
NIR
VIS
'WAVELENGTH FOI HUAI FNTR
(UNBLOCKED 90%) -
SHORT SIDE REJECTION: TRANSMISSION ;= .01% ( 1 0 " )
10.000A - I.Ou 100θΓΠμ 1000nm
ι— BANDWIDTH (FULL WIDTH) AT HALF PEAK TRANSMISSION» LONG SIDE REJECTION: TRANSMISSIONS .01% (10-•>)
P E A K W A V E L E N G T H (\) 5 4 6 1 A
(Hg)
N O T E : C A L I B R A T I O N C U R V E S FOR A L U IF's A V A I L A B L E A T N O M I N A L EXTRA COST Î C A R Y - 1 4 SPECTROPHOTOMETER USED EXCLUSIVELY)
June 18 to 19—Great Lakes ACS Re gional Meeting. North Dakota State University, Fargo, N. D. Contact: Dr. Allan G. Fischer, Dept. of Bio chemistry, North Dakota State Uni versity, Fargo, N. D. 58105 June 18 to 19—Northwestern ACS Re gional Meeting. Seattle University, Seattle, Wash. Contact: Dr. William Scott Chilton, Dept. of Chemistry, University of Washington, Seattle, Wash. 98105 June 21 to 26—ASTM 73rd Annual Meeting and North American Mate rials Exposition. Royal York Hotel, Toronto, Ont, Canada. Contact: American Society for Testing and Ma terials, 1916 Race St., Philadelphia, Pa. 19103
2nd National Atomic and Molecular Physics Conference
IsolateNa,K,Hg,Li with Confidence When you use Laser Optics Isolation Filters (l-F's) for chemical analysis, you expect and get positive indication of hard to isolate elements. Even calcium in blood serum can be easily identified using l-F's with flame techniques. Strong signal to noise ratios typify all l-F's and make pos sible precision electro-optical detection or sensing sys tems of simplified design. You can identify with confidence a wider range of ele ments and compounds than ever before possible with your electro-optical system. All l-F's retain their integ rity in unfriendly environments such as high humidity. Even high ultraviolet (UV) energy will not degrade their performance. These filters are designed for any electro-optical detection or sensing system operating in the Ultraviolet (UV), Visible (VIS) or Infrared (IR) frequency ranges. They are described in a new LOI bulletin entitled l-F's — High Performance Isolation Filters. Write or call Laser Optics, Inc. for your free copy and a quotation.
P.O. B O X 3 , D A N B U R Y , C O N N E C T I C U T
Circle No. 145 on Readers' Service Card
76 A
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ANALYTICAL CHEMISTRY
Heavy particle collisions and chemical processes Ultraviolet and X-ray spectroscopy, plasma, and solar spectroscopy Electron collisions Far infrared and submillimeter spec troscopy Magnetic resonance and hyperfine structure Isotope shifts Quantum optics
Further information is available from The Institute of Physics and The Physical Society, 47 Belgrave Square, London. S.W.I, England. Industry Items Dow Chemical Co. recently placed in operation a new plant in Midland, Mich., for the production of fine mesh ion exchange resins. This doubles the company's capability for producing Dowex ion exchange resins in the 100200 and 200-400 mesh-size range. Ana lytical and commercial grades of these resins are distributed by Bio-Rad Lab oratories of Richmond, Calif., and New York, Ν. Υ. Fisher Scientific Co., Ltd, has added its fifth branch by opening a modern facility in Ottawa. The sales/ distribution/service center at 1830 Walkley Rd. will be linked by computer to all four other Fisher branches in Canada, adding these warehouse spaces to its own to assure fast service.
LASER OPTICS, INC.
TELEPHONE: 203-744-4160 • TWX
The Atomic and Molecular Physics Subcommittee of The Institute of Phys ics and The Physical Society is arrang ing a conference on atomic and mo lecular physics for April 13-16, 1970, at University College London. The program will include sessions on :
06810
710-456-0463
Gelman Instrument Co., 600 S. Wagner Rd., Ann Arbor, Mich., has signed an agreement with Matheson Scientific Division of Will Ross, Inc., to distribute the Gelman line of labora tory equipment.
