NEWS
L/I instruments automate procedures at Alta liâtes Community Hospital, Berkeley, California. Chief chemist, Robert De lioton. Tests are cholesterol, uric acid, glucose, and creatinine.
INSTANT DETERMINATIONS Just Add L / I Automatic REPIPETS* and Dilutors* Whenever you dispense, transfer, mix, aspirate or dilute, do it with L / I instruments in seconds instead of minutes. And do it with higher precision, no change in procedures, and complete freedom from contamination. You may even use your own reagent bottles! L / I REPIPETS and Dilutors handle any reagent, hot or cold, with a guaranteed accuracy of 1%, reproducibility ± 0 . 1 % . Volumes? From microliters to deciliters. Each instrument can be set from 0 to full capacity. Cleanup? None. Dilutors $89.50, including complete set of tips for highest precision in all ranges. R E P I P E T S $17.50. Immediate delivery in 1, 10, 20 and 50 ml sizes. Write for brochure which gives complete details and specific clinical and chemical procedures. •Patents Pending, R E P I P E T S (REpetitive PIPETS) and Dilutors. See us at FASEB, Booth K-105 L I
LABINDUSTRIES
1802A Second St., Berkeley, Calif. 94710
TH3-0220, Cable LABIND
Circle No. 58 on Readers' Service Card
60 A
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ANALYTICAL CHEMISTRY
search, New York, N. Y.; C. A. A n dersen, Hasler Research Center, Goletta, Calif. Mineral Chemistry of Enstatite Chondrites. K. Keil, NASA A m e s Research Center, M o f f e t t Field, Calif. Electron Probe Microanalysis of Ohmic Contacts t o GaAs. R. H. Cox, J. P. S m i t h , Texas I n s t r u m e n t s Research Lab., Dallas, Texas. Electron Probe Techniques in t h e Analysis of Refractory Metal Coatings. P. L u b l i n , W. J . S u t k o w s k i , General Telephone a n d Electronics Laborat o r i e s , Inc., Bayside, Ν. Υ. Electron Microprobe Analysis of the Alpha and Beta Phases of 4AI-4V and 4 A I - 3 M o - l V Ti Alloys as a Func tion of Heat Treatments. R. H. Olsen, B o e i n g Co., R e n t o n , Wash. Effects of Interstitial and Substitutional Impurities on Diffraction in the T i - N b System. D. J . Nagel, L. S. Birks, Naval Research Laboratory, Washing t o n , D. C. Metallurgical Investigation of Problems Associated with the Production of Steel. H. Nikkei, Y o u n g s t o w n Sheet and Tube Co., Y o u n g s t o w n , Ohio. A Simple Correction for Ultrasoft X-Ray Microanalysis. P. D u n c u m b , D. A. M e l f o r d , T u b e I n v e s t m e n t s Research Labs., H i n x t o n Hall, England. Modifications of an Electron X-Ray Probe Microanalyzer for the Analysis of the Elements in the Range Sodium to Boron. I. K. Openshaw, Associated Electrical Industries, Manchester, England. Evaluation of the Correction Procedures Used in Electron Probe Microanalyzer with Emphasis on the Atomic-Num ber Interval between 12 and 3 3 . D. R. B e a m a n , Dow C h e m i c a l Co., Midland, Mich.
International Conference on the Characterization of Materials Pennsylvania State University's, Ma terials Research Laboratory and Con tinuing Education is holding an International Conference on the Char acterization of Materials, Nov. 16 to 18. The conference is designed to focus the attention of the scientific commu nity on the field of solid state science and encourage the interchange of in formation on objectives, standards, and techniques, and recent progress. Discussions will cover the following topics: elemental composition of ma terials; site distribution and valence state of ions in solids; structure deter mination, particularly in aperiodic, lattices; point, line, and surface defects, their characterization in materials; or der-disorder, clustering, and phase separation; and crystal growth and preparation of crystals and polycrystalline solids with pre-detcrmincd char acter. Further information may be obtained by writing The Director, Ma terials Research Laboratory, 1-112 Re search Bldg., Pennsylvania State Uni versity, University Park, Pa. 16802.
