ANALYTICAL C H E M S ~ Y Appoints Three New Instrumentation Advlsory Panel Members
HIGH MAGNIFICATION MAY BE IMPORTANT, BUT..
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INORGANIC CHEMICALS
THE INTELLIGENT ELECTRONIC BALANCE ...ONLY $1395.00
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Put The "Third Generation", Computer Compatible Injector On Your "Second Generation" HPLC
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ELECTRO-ANALYTICAL APPARATUS ELECTRO-ANALYZER, Cat. 1000. For simultaneous or individual determination of copper, lead, zinc, nickel, antimony, cadmium by electro-deposition. For 115/230v, 50/60 Hz.. . without electrodes $1525.00 ULTRA-SPEED ELECTROANALYZER, Cat. 1250. For high speed determinations of copper and lead by electro-deposition. Deposits 1 gram of copper in 8 minutes. Single position instrument. For 115v, 50/ 60 Hz. . .without electrodes $1690.00 DYNA-CATH, Magnetic Mercury Cathode, Cat. 1510. For rapid separation of metals. For example, analysis of aluminum in zinc-base alloys. For 115v, 50/60 Hz. . .with platinum electrodes $2500.00
Eberbach
CORPORATION
P.O. BOX 1024 ANN ARBOR, MICHIGAN 48106
See us at the Pittsburgh Conference, B o o t h # 3 1 4
CIRCLE 75 ON READER SERVICE CARD
For perfect solutionsspecify Alfa AA Standards Alfa offers the most complete line of atomic absorption standards available for trace metal analyses—at new, lower prices. And shipment is guaranteed within 24 hours. Included are standard solutions of 1000 ppm of metalinanaqueousmatrix.aswellasorganometallic standards for use with heavy organic liquids. Circle our reader service number for more information on Alfa's AA Standards. Alfa Division, Ventron Corporation, 152 Andover Street, Danvers, Massachusetts 01923 (617) 777-1970 (617) 289-9250
Alfa
DIVISION OF VENTRON CORPORATION
CIRCLE 233 ON READER SERVICE CARD
Write or phone for catalog
PRECISION CELLS, INC. 560 SO. BROADWAY, HICKSVILLE, NY. 11801 · (516) 938-7772 CIRCLE 174 O N READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 2, FEBRUARY
1979 ·
213 A
News See Us At Booth 810 "Pittsburgh 79"
MET EXAC™5000 Compuier-Based Energy Dispersive XRF Systems
Built io perform reliably in the toughest industrial environments ... and to satisfy demanding research requirements • Unique, down-looking, detector — x-ray tube geometry — analyze fragile briquettes, powders, and liquids conveniently, precisely, and without danger of system contamination — high-angle, detector x-ray tube geometry maximizes analytical sensitivity • Uniquely flexible, computer-based system — complete library of qualitative (QUALEXTM) and quantitative (EXAC) analysis programs — the system can be programmed to suit individual user requirements in NEC BASIC II (The Spectroscopy Language of Today) • Computer controlled "Intelligent" sample changer maximizes throughput
Nuclear Equipment Corporation 9 6 3 Industrial Road San Carlos, California 9 4 0 7 0 Phone: (415) 591-8203 79/04
Whatman Inc., announces the estab lishment of a toll-free telephone line for its H P L C customers to discuss problems with W h a t m a n experts. T h e technical staff, selected and trained to assist users of Whatman Partisil col umns and other H P L C products, has access to computer data banks and ap plications laboratories. T h e toll-free number is 800-631-7290. A newly produced film, What About Tomorrow?, explores the history of basic research as well as today's scien tific endeavors and the people search ing for new knowledge. Research top ics include use of high-altitude bal loons to measure ozone in the strato sphere, how a tiny fern converts nitro gen from air into fertilizers for crops, and the use of lasers in chemistry. T h e film is available on free loan from: Modern Talking Pictures Service, 2323 Hyde Park Rd., New Hyde Park, N.Y. 11040. Sadtler Research Laboratories, Inc., has published a brochure that de scribes and illustrates its High Reso lution Evaluated Quantitative In frared Spectra Collection. Each compound in the collection is repre sented by two spectra; both are plot ted linear in percent transmittance and in absorbance. Spectra are pre pared in solution at two wavenumber resolution over the range of 4000-400 c m - 1 , and are in accord with the Class II guidelines established by the Coblentz Society. For a copy of the 8-page brochure or more information on this collection, contact Sadtler Research Laboratories, Inc., 3316 Spring Gar den St., Philadelphia, Pa. 19104 (215382-7800). Rofin, Ltd., Surrey, England, an nounces the establishment of a subsid iary, Rofin, Inc., Newton Upper Falls, Mass., to handle sales, service, ware housing, and distribution of the firm's line of electro-optics products in the U.S. "Research N e e d s and Instrumental Requirements in Catalysis," pub lished by the National Science Foun dation's Division of Engineering, pre sents the results of a workshop held at the University of Maryland J u n e 2 2 23. This report includes sections on catalysis by metals and nonmetals, the applications of spectroscopic tech niques, and support of fundamental research in catalysis. Free copies may be obtained by writing to Marshall M. Lih, Engineering Chemistry and Ener getics Section, NSF, 1800 G St., N.W., Washington, D.C. 20550.
CIRCLE 149 ON READER SERVICE CARD 2 1 4 A · ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 2, FEBRUARY
1979
Garland Way Advertising, Inc., has been appointed the advertising agency for Leybold-Heraeus Vacuum Prod ucts Inc., Monroeville, Pa. LeyboldHeraeus is a supplier of vacuum com ponents and systems for industrial processing and research and develop ment. The J C P D S - I n t e r n a t i o n a l Centre for Diffraction Data, in cooperation with N I H and EPA, announces an in teractive search system based upon its file of over 33 000 powder diffraction patterns. T h e Powder Diffraction Search Match System is available for use as a component of the N I H - E P A Chemical Information System on a cost-recovery basis. Searches are billed on an elapsed-time basis and cost between $5.00 and $20. For fur ther information, contact the J C P D S at 215-328-9400 or the CIS at 800645-1132. N e u t r o n Activation Analysis is of fered as a contractural service by the Nuclear Analytical Services Laborato ry of Science Applications, Inc. T h e scope of the laboratory's service capa bilities includes preirradiation chem istry, radiochemical separations, methodology development, and com puter-based data reduction and report format. Further details on the compa ny's Neutron Activation Analysis ser vices are available from: Dr. Vic Or phan, SAI Technology Co., 4060 Sor rento Valley Blvd., San Diego, Calif. 92121. Elsevier Scientific Publishing Co. an nounces the forthcoming publication of the Journal of Analytical and Applied Pyrolysis, edited by H. L. C. Meuzelaar and H. R. Schulten. Sub scription price is $70.75. A free sample copy is available on request from Else vier Scientific Publishing Co., P.O. Box 330,1000 AH Amsterdam, T h e Netherlands. Lake Shore Cryotronics, Inc., an nounces the availability of a new ser vice for measurement of thermal prop erties of materials, specific heat and thermal conductivity, in the measure ment range of 2-30 K, with an uncer tainty of method less than ±5%. Mea surements are performed in an adiabatic calorimeter, and all data are ref erenced to thermometer standards, calibrated to IPTS-68 and EPT-76. Samples supplied for measurements should be in the form of disks % in. in diameter by V.i in. thick for specific heat and Ve Χ λΙ\ X IV4 in. for thermal conductivity. For complete details, re quest technical data S H - T C from
10 years ago it was the best analytical lab balance around. 2500 units later, theTorbal EA-1 still is
The "All-American" Balance Torbal EA-1 has been in continuous production since 1968. Almost every one made in those ten years is still in service, and most with never a service call. What makes the Torbal so durable—so special—for laboratory use is its friction-free torsion design. There's no damageprone knife edge to wear, or need replacement. Which is why the Swiss and German makers are now switching to torsion suspension in their balances. At Torbal we've been building torsion suspensions for over 80 years.
Unmatched reliability and quality. Every Torbal balance is "new generation", combining the quality and the reliability of a nonfatiguing torsion band.
What makes Torbal the best? %^J
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Now save as much as $1000 over copy-cat imports. The EA-1's combination of uncompromising quality and repairfree operation has always provided for inexpensive, long-run operation. And right now, thanks to dollar fluctuations, it will cost you a lot less than a copy-cat import. We'd like you to see the EA-1. Unfortunately, size, weight and set-up time present some difficulties for your distributor salesman. So drop us a line and tell us where you are. We'll introduce you to a Torbal user in your area for a hands-on demo.
TORBAL
• Friction-free torsion design. • Electronic null indicator for fool-proof readouts. • Large, easy-to-read digital readouts to 159.9999 grams. • Accuracy to 0.1 mg without vernier or micrometer readings. • 8 to 10 grams of infinitely variable dial-in-tare (with extended tare options to 208 grams). • No knife-edges—no "beam arrest" required. Write for illustrated brochure or a demonstration. (And look for us at the Pittsburgh Conference, Booth 402, March 5th to 9th.)
THE TORSION BALANCE COMPANY Main Office and Factory: Clifton, N.J. 07012 Sales Offices: Chicago. IL; Temple City, CA
CIRCLE 203 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 51, NO. 2, FEBRUARY 1979 · 215 A
Imagine! A n automated continuous flow industrial analyzer f o r under $ 6 5 0 0 · The jobs our CFA 200 will do won t surprise you. We produce well over 200 plug-in analytical cartridgesfo the CFA200to handlethe verysameautomatedcolori metricwetchemical procedures you feel comfortable with. Yet our CFA 200 Analyzer was designed for indus trial applications. So it's a lot less finicky. Its direct gear drive pump wears less, and is a snai maintain. Its unique prismoptics improves photometrii accuracy. Itsprealignedflowcellsslipin and out in seconds. And if you need greater sensitivity we will equip your CFA 200 with flowcells up to 75mm. Also, you get an easy-to-read digital readout. And practically any standard chart recorder plugs in when lyili 333 All this packaged in a single, rugged compact case you can move from the lab, to the plant, to the field. CFA 200—the less finicky wet analyzer from Scientific Instruments Corporation. More instrument, more service... for less money. Write for free details.
™ INSTRUMENTS
scientific
CORPORATION
2 5 Broadway, Pleasantville, NY 1 0 5 7 0 • Phone: ( 9 1 4 ) 7 6 9 - 5 7 0 0 SEE US AT THE PITTSBURGH CONFERENCE, BOOTH # 1 5 5 0 - 5 2 CIRCLE 197 O N READER SERVICE CARD
The little Chem Meter : big on accuracy Take a look at all the outstanding features m our Series 20 Chem/Meter hydraulic diaphragm metering pump: Metering accuracy within ± 1%. Steady, continuous feeding of clear fluids'. Capacities of 14.7 ML/min. Pressures t o 1500 psi. Zero t o 100% capacity adjustment while operating. Totally enclosed, leakproof design. Wetted parts made of corrosive resistant stainless steel with sapphire ball-seats and teflon diaphragms. Measures only 10J-Î" X 5" X 3J£". The Series 2 0 Chem/Meter is ideal for machinery that requires the injection of precisely measured liquids. These include plastics, pharmaceuticals, chemical process, foods, beverages and fertilizers. For larger measuring requirements from 23 to 3024 ML/min we have the Series 200 Chem/Meter. You can get all the details on t h e reliable Chem/Meter line by calling or writing Crane Co., Chempump Division, Warrington, Pa. 18976.
CRANE ® CHEMPUMP CIRCLE 32 ON READER SERVICE CARD 216 A . ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 2, FEBRUARY 1979
CR8-190
News
Lake Shore Cryotronics, Inc., 64 East Walnut St., Westerville, Ohio 43081 (614-891-2243). Science Media announces an instructional program entitled "The Identification of Polymer Additives by Infrared Spectroscopy." Authored by Richard Nyquist of Dow Chemical Co., this is the second program in a new series (developed in a cooperative effort with the Coblentz Society) devoted to the interpretation of IR spectra of specific classes of compounds. Program materials consist of an audio taped lecture on cassette, workbook, problem spectra booklet, and text. Price is $45. Contact: Science Media, P.O. Box 910, Boca Raton, Fla. 33432. Lab-Line Instruments, Inc., installed the Centrex System effective Dec. 4,1978. Their new main number is 312-450-2600 or 312-LAB-LINE. Astra Scientific International Inc., announces its appointment as the exclusive U.S. representative for SoleaTacussel, a manufacturer of electrochemical instrumentation located in France. For more information contact: Astra Scientific International, Inc., P.O. Box 2004, Santa Clara, Calif. (408-244-9767). Science Media, a division of J. Huley Associates, Inc., has expanded the utility of its spectra interpretation courses by offering a revised edition. Currently in use in over 500 higher level academic institutions, subjects include the interpretation of infrared, NMR (proton and C-13), mass, Raman, and electron spin resonance spectra. Newly adapted materials consist of seven audio cassettes, workbooks, and explanatory notes. The complete series is priced at $175.
ANALYTICAL CHEMISTRY is pleased
to announce the availability of a combined reprint containing the 50th Anniversary Symposium contributions presented at Miami Beach in September 1978 and published in the November and December 1978 issues of the JOURNAL. The 42-page reprint also contains Professor Laitinen's editorials from Nov. and Dec. and the Report on editorial staffing over the 50-year period. For your copy, send $1.00 to cover postage and handling to Business Operations, American Chemical Society, 1155 16th St., N.W., Washington, D.C. 20036.
