Analytical Chemistry Volume 45, No. 10, August 1973 Laboratory Guide to Instruments, Equipment, and Chemicals Editorial Manager Arthur Poulos Editorial Assistant Joanne Mullican
PERCHLORIC ACID and PERCHLORATE SALTS
Production Manager Bacil Guiley Advisory Committee Ε. Ε. Fleck Edward C. Knoblock John K. Taylor
Seven concentrations and grades of per chloric acid and fifty-nine perchlorate salts.
A M E R I C A N C H E M I C A L SOCIETY 1155 16th St., N.W., Washington, D.C. 20036 Analytical Chemistry produced under the direction of Books and Journals Division
Director John Κ Crum Assistant to the Director Ruth Reynard
Cerium (IV) salts for oxidation-reduction work and Cerium (III) salts for general laboratory use.
IODIC and PERIODIC ACIDS and SALTS lodates and periodates for oxidation, standards and general laboratory work.
Director Richard L. Kenyon
DESICCANTS
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DEMUTH Laboratory Glassware Demuth quality glassware is produced from carefully controlled formulations to meet precise laboratory require ments for each glass product.
Demuth products include: • Pipettes in a variety of capacities and calibrations. • A wide range of culture tubes and test tubes—constricted and plain. •
Scintillation vials.
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Colorimeter tubes.
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Stir rods and Applicator rods. Send for Tissue Culture and Bacteriological C a t a l o g — a complete guide to glass ware and related plastic parts.
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by the American Chemical Society The American Chemical Society assumes no re sponsibility for the statements and opinions advanced by contributors to its publications.Views expressed in the editorials are those of the editors and do not necessarily represent the official position of the American Chemical Society. 1973 Subscription Rates 1 yr. 2 yr. Members, domestic and foreign Nonmembers. domestic and Canada Nonmembers, foreign excgpt Canada
Colorimetric, complexometric, spectrophotometric, reduction-oxidation, fluorometric and precipitation reagents for general analysis or trace element deter minations.
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Featuring magnesium perchlorate, the most efficient of the chemical dryers.
PRIMARY STANDARDS Oxidation-reduction, acid-base and com plexometric standards for the best ana lytical work.
GENERAL LABORATORY REAGENTS Many of the common reagents are now available by direct order from G. Fred erick Smith Chemical Co.
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