Beckman® INSTRUMENTS, INC. - ACS Publications

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CALIKIT

MANUFACTURERS' LITERATURE

Plastic Supplies. This company's catalog pictures polyethylene laboratory items. Kern Chemical Corp., 854 S. Robertson Blvd., Los Angeles, Calif. 90035 625 Mass Spectrometry. A new 8-page brochure describes the design and operation of the Model 610-611 mass spectrometer-residual gas analyzer. The compact unit has controls arranged with three readouts: emission, scan, and pressure. The instrument features sensitivity to 10~1B torr with resolution to 250 amu. Aero Vac Corp., Box 448, Troy, Ν. Υ. 12181 626

Company Periodicals

REFERENCE CHEMICALS Calikits contain 12 highly purified, reliable reference chemicals for quantitative and qualitative analyses in gas chromatography and absorption spectroscopy. Calikit No. 1

Fatty Acid Methy\ Esters (100 mg each) Caprylic Acid Arachidic Acid Capric Acid Palmitoleic Acid Laurie Acid Oleic Acid Myristic Acid Linoleic Acid Palmitic Acid Linolenic Acid Stearic Acid Arachidonic Acid* #139501W $65.00 * 9 0 + % pure. All other fatty acid methyl esters have purities of 98% or better.

Pesticides (5 g each) DDVP Chlordane p, p-DDD Methyl Parathionf Heptachlorf Dieldrin $50.00

Calikit No. 2

Lindanet Guthionf p, p-DDT Toxaphene Parathion 2, 4-Df #139502W

fPurities of 99% or better. Toxaphene and Chlordane are mixtures. All other pesticides 95—98% pure.

Calikit No. 3 n-Hexane n-Nonane n-Dodecane n-Octadecane n-Heptane n-Decane

n-Alkanes (5 ml each) n-Tetradecane n-Eicosane* n-Octane n-Undecane n-Hexadecane n-Docosane* $30.00

#139503W *98%

pure. All others n-alkanes 99% or better.

Mail purchase order to Reference Chemicals Product Manager, Beckman Instruments, Inc., 2500 Harbor Blvd., Fullerton, California 92634. B e c k m a n

I N S T R U M E N T S , INC. SCIENTIFIC AND PROCESS INSTRUMENTS DIVISION FULLERTON, C A L I F O R N I A · 9 2 Î 3 4

INTERNATIONAL S U B S I D I A R I E S : GENEVA; M U N I C H ; GLENROTHES, SCOTLAND; TOKYO; PARIS; CAPETOWN; L O N D O N ; MEXICO CITY

Circle No. 210 on Readers' Service Card 164 A

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ANALYTICAL CHEMISTRY

Requests for copies of the following publications, catalogs, etc., should be sent directly to the address shown. Business or professional letterheads are requested. Atomic Absorption Newsletter, Vol. 5, No. 6. This 23-page issue contains articles on techniques and specific ap­ plications of atomic absorption analy­ sis. Articles discuss the determination of aluminum in trialkyl aluminums and the spectral interference from multiele­ ment hollow cathode lamps. PerkinElmer Corp., Main Ave., Norwalk, Conn. 06852 Laboratory Scintillator, Vol. 11, No. 2L. "Liquid Scintillation Counting-In­ strumentation System Logic" is the topic of the second in a scries of six issues devoted to liquid scintillation counting techniques. Photomultiplier tubes, radioisotopes, single tube coun­ ters, coincidence systems, and a com­ parison of counting systems are includ­ ed in the discussion. Picker Nuclear, White Plains, Ν. Υ. Norelco Reporter, Vol. XIII, No. 4. This issue is devoted to electron micros­ copy and contains several papers pre­ sented at the Sixth International Con­ gress on Electron Microscopy in Kyoto, Japan. Topics include electron micro­ scopical studies of carbon black, chemi­ cally modified cotton fibers, and pro­ tective coatings on transistors. Philips Electronic Instruments, 750 S. Fulton Ave., Mount Vernon, Ν. Υ. MPI Application Notes, January, 1967. The January issue discusses the use of operational amplifiers with thermo­ couples for temperature measurement and control. McKce-Pcdersen Instru­ ments, P.O. Box 322, Danville, Calif. 94526

Spectrographer's News Letter, Vol. XIX, No's. 3 and 4. "Dynamic Anal­ ysis with X-Ray Fluorescence Instru­ mentation" discusses the use of xray fluorescence to obtain automat­ ic, high-speed, continuous analysis of solids, powders, slurries and solu­ tions. This method is useful for ce­ ment, copper, phosphate, zinc, lead, and uranium ores in wet or dry form. Applied Research Laboratories, P.O. Box 1710, Glendale, Calif. 91209 Facts and Methods, Vol. 7, No. 6. This issue discusses a e3 Ni electroncapture detector which operates at de­ tector temperatures up to 355° C, uses for this company's porous polymer packing for gas chromatograph col­ umns, and chemical applications of quartz thermometry. Hewlett-Pack­ ard, Route 41 and Starr Rd., Avondale, Pa. 19311 Instrument News, Vol. 17, No. 2. This periodical contains articles on in­ frared analysis of paintings and ancient artifacts, techniques for trapping frac­ tions from gas chromatographs for in­ frared spectroscopy, gas chromato­ graphic analysis of fatty acid esters of glycerols, and turbid system spectro­ photometry. Perkin-Elmer Instrument Division, Main Ave., Norwalk, Conn. 06852 Spectrum Scanner, Vol. 21, No. 4. The cover article considers the water pollution problem and the analytical techniques used for determination of metallic contaminants. Other topics include the inapplicability of a double beam system to atomic absorption, the use of a double monochromator to re­ duce scattered light, and information on this company's x-ray spectrometer and spectrochemical excitation sources. Jarrell-Ash Co., 590 Lincoln St., Waltham, Mass. 02154 GC Newsletter, Vol. 3, No. 1. This magazine describes fraction collection from this company's Model 800 series gas chromatographs for subsequent spectroscopic analysis. Another article is Part 2 of a discussion on column se­ lection. Perkin-Elmer Instrument Di­ vision, Main Ave., Norwalk, Conn. 06852 Instrumentation, Vol. 19, No. 4. This issue includes a discussion of factors that determine the distance between an electrical primary sensor and its receiv­ ing instrument. Another article com­ ments on future trends in process in­ strumentation. Honeywell Industrial Division, 1100 Virginia Dr., Fort Wash­ ington, Pa. 19034