Gilson Medical Electronics, Inc

the dial of a Brookfield. Viscometer takes only ... CALL OR WRITE. Gilson Medical Electronics, Inc. CIRCLE ... MIDDLETON, WIS. 53562 · PHONE 608/836-...
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Manufacturers' Literature Gas Chromatograph A 30-page brochure provides detailed information on performance data, sample systems, oven performance, major accessories, analytical performance, and data from five different detector systems for the Model 910 series gas chromatographs. PerkinElmer Corp. 430

Air and Water Pollution Bulletin 51, a bibliography of applications of infrared spectroscopy to air and water pollution, lists 80 references. Perkin-Elmer Corp. 431

Gas Chromatograph The 400 series gas chromatographs are featured in a new 4-page brochure. Antek Instruments, Inc. 432

Mass Spectrometer Data System

Pesticide Standards

H P 5933A dual-disc mass spectrometer data system is described in a 20-p brochure detailing system hardware configurations, operating features, available software programs, and ordering information. Hewlett-Packard Co. 435

A list is available of over 170 of the more common pesticide standards, organized to give common name, synonym, active ingredient, and percent composition. Analabs Inc. 434

NMR Technique for Determining Composition of Fats and Oils

The Model AR-2 recording vacuum balance is described in a 6-p brochure detailing the balance's stability, features, accessories, and some pertinent application information. PerkinElmer 443

" 1 3 C NMR as a Quantitative Analytical Method for Determining the Composition of Fats and Oils" describes the application of 13C NMR to a triglyceride. Varian Instrument Division 436

Gas Chromatographic Detection of Vinyl Chloride Monomers Application note ANGC 1-75, 4 p, describes how a gas chromatograph system can be configured for vinyl chloride to help manufacturers stay within safe limits. Hewlett-Packard 437

Infrared Spectroscopy

Fluorescence Spectrophotometry

Infrared Shopper, Spring 1975, 4 p, examines new developments in sample handling for infrared spectroscopy. Wilks Scientific Corp. 433

A bibliography of 50 articles relating to various applications of fluorescence spectrophotometry is available. Perkin-Elmer 438

Viscosity measured

Recording Vacuum Balance

Amino Acid Detection Application note 176-16, 4 p, gives details of an analysis of derivatized amino acids by chemical ionization gas chromatography/mass spectrometry. Hewlett-Packard 444

Environmental Standards More than 40 standard reference materials useful for environmental research and control, available from the National Bureau of Standards, are described in a new NBS pamphlet. Office of Standard Reference Materials, Room B311, Chemistry Building, National Bureau of Standards, Washington, D.C. 20234

MINIPULS PERISTALTIC P U M P S miniature pumps with superior performance

the easy way! A typical reading from the dial of a Brookfield Viscometer takes only 30 seconds . . . factor for range and you have an accurate reproducible viscosity measurement directly in centipoise units. There's no guesswork, no timing, no involved calculations. It's the easiest way there is. Multi-speed models cover a total range of 1 to 64,000,000 cps for Newtonian and nonNewtonian fluids. Literature available.

• Continuous flow adjustment 1-1300 ml/hr. • Digital speed control • Tubing can be replaced while motor is running • Very low pulsation Available in 1-, 4-, 8- and 16-channel models

EXCLUSIVELY CONCERNED WITH

CALL OR WRITE

BROOKFIELD VISCOSITY

MEASUREMENT

AND CONTROL FOR

Gilson Medical Electronics, Inc.

P.O. BOX 27. MIDDLETON, WIS. 53562

·

PHONE 608/836-1551

OVER 4 0 YEARS.

BROOKFIELD ENGINEERING LABORATORIES INC., Dept. F4 STOUGHTON, MASS

02072

617/3444310

CIRCLE 2 6 O N READER SERVICE CARD

792 A

ANALYTICAL CHEMISTRY, VOL. 47, NO. 8, JULY 1975

CIRCLE 9 2 O N READER SERVICE CARD