THE SYMBOL OF EXCELLENCE SINCE 1 9 5 9
If you're doing chromatography, electrophoresis, ultrafiltration... this is one book you should have.
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Bio-Rad's Price List Β Complete, comprehensive, and featuring many powerful new tools for the researcher, new Price List Β is a 144-page laboratory workbook that will serve you well. In addition to product detail and pricing, Price List Β is, as always, loaded with applications information. For your free copy, contact:
BIO-RflD Jta6wtat&Ue& 32nd & Griffin Avenue Richmond, California 94804 Phone (415) 234-4130 Also in: Rockville Centre, N.Y.; Toronto, Ontario; London; Milan; Munich; Sao Paulo.
Building Blocks for Spectrochemical Analysis... CONOSTAN standards are designed for metals in oil analysis by emis sion, atomic absorption, or X-ray fluorescence spectrometry. These standards are recognized for their high degree of compatability and stability. There are 29 elements as individual standards at 5000 ppm in light mineral oil for atomic absorption analysis. Mercury and arsenic are available at 100 ppm in light oil.
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CONOSTAN blends of 12 or 20 metals in a heavy oil are widely accepted reference standards for wear metal analysis in lubricating oil. A blend containing Ca at 5 times the wear metal level is also available at the 20 metal level.
Purified to the exacting require ments of gas chromatography, liquid chromatography and spectrophotometric analysis. Acetone Acetonitrile Benzene Butanol-l Butanol-2 Butyl Chloride Butyl Formate Carbon Tetrachloride Chloroform Cyclohexane Cyclopentane o-Dichlorobenzene Dimethyl A c e t a m i d e Dimethyl Formamide Dimethyl Sulfoxide Dioxane 2-Ethoxyethanol Ethyl Acetate Ethyl Ether Heptane, 95-99° Hexadecane Hexane, 68-69° Isobutyl Alcohol Methanol 2-Methoxyethanol Methylene Chloride Methyl Ethyl Ketone Methyl Isobutyl Ketone N-Methylpyrrolidone n-Nonane Pentane Petroleum Ether, 30-60° beta- Phenethy la mi ne Propanol-2 Propylene Carbonate Pyridine Tetrahydrofuran Toluene 2, 2, 4-Trimethylpentane, 99-lOO? o-Xylene Ask for Bulletin BJ 2 5 / u . S . Agencies use F.S.S
ICONOSTAN CONOSTAN DIVISION · Continental Oil Company P.O. Box 1267 · Ponca City, Oklahoma 74601 CIRCLE 31 ON READER SERVICE CARD
BURDICK & JACKSON L A B O R A T O R I E S , I N C . (6i6) 726-3171 1953 S. HARVEY ST., MUSKEGON. MICHIGAN 49442
CIRCLE 28 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL.
48, NO. 6, MAY 1976 · 507 A
