DEPENDABLE DISPENSERS Features: • Rapidly and accurately dispenses repetitive LAMBDA quantities • No metal contact with reagent • Resistant to at, least 9 0 % of th chemical reag used in the laboratory
Manufacturers' Literature
WHAT'S BEHIND THEM?
Research chemicals, 64-p catalog lists about 1000 chemicals, including 600 newlv available. PCR, Inc., P.O. Box 1466^ Gainesville, FL 32601. 904-3767522 Water analysis, 12 p, explains use of 500A for measurement of low concentrations of constituents in water. Bulletin 500 gives application information on methods based on color measurements against glass standards. Lovibond of America, Inc. 516-756-0254 457 High-purity solvents, 4 p, lists and prices distilled-in-glass solvents. Burdick & Jackson, Inc. 616-722-2310 458 Application Notes
• The Lambda Pipettor and the MISCOmatic, fast acting, accurate, and unbreakable. • The L A M B D A PIPETTOR delivers serial volumes down to 10 microliters with a reproducibility of ± 0.5 microliter. Vernier type adjustment is accurate to within ± 1.0 microliters. Size: B-50, C-100, D-250 Lambda. Price: $39.75 The MISCOmatic Dispenser is a precision instrument, designed to simplify (1 ) The accurate measurement of liquid quantities, (2) Reproduction of an initial quantity. CAPACITYJIDIS-
pensing l ^ a d . . . Adjustable from "I^Oml Reservoir... 1000ml ACCURACY: Within 1.0% (0.1ml) REPRODUCIBILITY: 0.5% (0.05ml) SIZE: 10ml PRICE: $37.75 For further information write for illustrated brochure to:
MISCO
MICROCHEMICAL SPECIALITIES COMPANY 1825 Eastshore Hwy., Berkeley, CA 94710 (415)843-1282 CIRCLE 142 O N READER SERVICE CARD
Application note index to 1971 and 1966-70 MPI application notes. Clinical, analytical, pharmaceutical uses. McKee-Pedersen 459 T i m e correlation for i n s t r u m e n t a t i o n ,
reprint from Electronic Instrument Digest, October 1971, 6 p. Chrono-Log Corp. 460 Solvent purification by Woelm active aluminas, 4 p, includes reference tables on solvents purified by adsorptive filtration and a detailed Woelm bibliography. Waters Assoc. 461 Portable gas chromatography instruments, described are uses for determination of low levels of CO in air, PCB residues, total hydrocarbon-methanenonmethane hydrocarbons in air, measurement of tracer gases such as SF e in air. Analytical Instrument Development Inc. 462 Barbituates in blood serum of drug overdose victims, 4 p, application of gas chromatograph/mass spectrometer analyses. Bulletin MS-0001. Du Pont Instruments 463 Gc/ms system for nanogram size samples, 4 p, illustrated are analyses of methyl sterate, DDT, dodecane, parathion, and dieldrin. Du Pont Instruments 464 Ir b e a m conforming gas cell for use in
analysis of pollutants, combustion byproducts, volatile materials, etc., 2 p, Barnes Engineering Co. 465 AA uses, 4 p, practical examples in biological, food analysis, cement, water, heavy chemical, clinical, metallurgical, and electrical power supply condensate analyses. Corning Scientific Instruments 466
Answer: An unsurpassed technical team called Cryogenic Associates, which continues to attract the attention of the chemist, the physicist, the biologist, the aerospace engineer . . . among others. Why? Because Cryogenic Associates is solving cryogenic problems with an effective combination of: •
T E C H N I C A L ABILITY which brings you the finest in engineering and original design.
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FABRICATION KNOW-HOW that turns your ideas into reliable hardware.
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FLEXIBILITY which allows you to select from existing designs, modified designs or custom designs to answer your needs.
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BREADTH that stretches from the design and production of simple LN 2 Dewars to the highly sophisticated 3 He/ 4 He Dilution Refrigerator.
If you haven't checked into Cryogenic Associates' talents and systems, you've missed something! They've earned the confidence of the most critical buyers.
CRYOGENIC ASSOCIATES INC. 1718 North Luett Avenue Indianapolis, Indiana 46222 Phone: (317) 632-2515 ". . . lor the finest in Cryogenic Systems".
Catalog Avaûable On Request CIRCLE 3 3 O N READER SERVICE CARD
