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ALCHEMY 1969...
CORNING Labtop from Fisher transmutes old workbench surfaces into brand-new supertops. Just cement CORNING™ Labtop to any benchtop mate rial. At once, that worn, scarred, burned or gouged surface is covered with a Space Age glass-ceramic in handsome matte gray. Permanently. Labtop is tough as case-hardened steel (it can't dent), has a mechanical strength about 20 times greater than conventional stone tops. It's extremely resistant to acids, alkalies and solvents, abrasion, and thermal shock (it's recommended for fume hoods). High in stain resistance too, and itwipes clean for a crisp new look, year in, yearout. Corning Labtop comes in 20 stock sizes for benchtops, three additional ones for reagent shelves (special sizes on request). Bulletin? Write Fisher Scientific Company, 1003 Fisher Building, Pittsburgh, Pennsylvania 15219. Or phone your Fisher representative—he can give you the details, plus a free Labtop sample that you can put through the paces for yourself. j. 7 „
F I S H E R S C I E N T I F I C CO.
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ANALYTICAL CHEMISTRY
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sorption Spectroscopy. Keith E. B u r k e , C. H. A l b r i g h t , I n t e r n a t i o n a l Nickel Co., Inc., Suffern, Ν. Υ. Some Improved Turbulent Flames and Their Use in Atomic Fluorescence Spectroscopy. R. M. Dagnall, M. P. Bratzel, J . D. W i n e f o r d n e r , University of Florida, Gainesville, Fla. Digital Data Handling for Atomic Ab sorption Spectrophotometry. J . E. Schallis, H. L. K a h n , Perkin-Elmer Corp., N o r w a l k , C o n n . Measurement of the Degree of Atomization of Elements in an Air-Acetylene Flame. W. P. T o w n s e n d , P. T. Zeegers, J . D. W i n e f o r d n e r , Univer sity of Florida, Gainesville, Fla. Recent Developments in Flame Emis sion, Absorption, and Fluorescence Methods. R. N. Kniseley, Iowa State U n i v e r s i t y , A m e s , Iowa Determination of Calcium in Atmo spheric Particulate Samples by Atomic Absorption Spectroscopy Util izing an Internal Standard. Jae Y. H w a n g , Frederic F e l d m a n , I n s t r u m e n t a l Laboratory, Inc., L e x i n g t o n , Mass. The Analysis of Electric Furnace Slags by Atomic Absorption Spectropho tometry. W. H. Scheub, C. J . S t r o m sky, T i m k e n Roller Bearing Co., Can t o n , Ohio Performance Features and Application of New Atomic Absorption Instrumen tation. N. S h i f r i n , J . R a m i r e z - M u n o z , D. Barber, B e c k m a n Instruments, Inc., F u l l e r t o n , Calif. Sprayer and Burner Units for Flame Emission and Atomic Absorption Measurements. R. Mavrodineanu, Philips Laboratories, Briarcliff M a n o r , Ν. Υ. Internal Standardization Philosophy in Flame Spectroscopy. Frederic J . F e l d m a n , Stanley B. S m i t h , Jr., In s t r u m e n t a t i o n Laboratory, Inc., Lex i n g t o n , Mass. Determination, by Atomic Absorption Spectroscopy, of Lead and Copper Contents of Particulate Samples Col lected from Air over Morton Grove, Illinois. C. D. B u r n h a m , C. E. M o o r e , T. Kowalski, J . K r a s n i e w s k i , Loyola University, Chicago, III.
BIOMEDICAL-TOXICOLOGICAL APPLICATIONS Optimization of a Spectrophotometer for the Measurements of Enzyme Re action Rates. Robert J . M a n n i n g , B e c k m a n I n s t r u m e n t s , Inc., Fullert o n , Calif. Rat Liver Subcellular Trace Metal Al terations Resulting from Exposure to Low Concentrations ( 5 0 ppm) of Car bon Monoxide. Stanely C. Mazaleski, W a s h i n g t o n University School of In t e r n a l Medicine, St. Louis, M o . ; Carl A. N a u , Robert C. D u n c a n , Ronald L. C o l e m a n , O k l a h o m a University School of Medicine Uses of the Laser Microprobe in Biomedicine. I. H a r d i n g - B a r l o w , NASA, Palo A l t o , Calif. New Methods for the Analysis of Hu man Skin and Perspiration by Infra red Spectroscopy. Β. Μ. A l l i s o n , Biology D e p a r t m e n t , M i c h i g a n Tech nological University; W. T. M. J o h n s o n , R. P. Harroff, A. M. Collings, W. W. J o h n s o n , C h e m i s t r y Dept., Lincoln University, Pa.
