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Flow Detector Model 170 Radioisotope Detector ana lyzes high-energy beta particles such as 32 P and gamma-emitting isotopes such as 1 3 5 l . It can be used with HPLC systems or low-pressure systems. Sep arations are done on HPLC columns, ef fluents are passed through the detector, and radioactive peaks are analyzed. Model 170 works without cocktails or other chemicals. Beckman 416
Shape Analyzer Shape Analyzer is an instrument that analyzes the shape of a particle by con verting the profile to a set of shape de scriptors. These shape descriptors are complete, unequivocal, and invariant. They can be used in quality control, process control, and materials specifi cations to measure the shape of the particulate material quantitatively and precisely. Shape Technology Ltd. 417
There's a lot of i n f o r m a t i o n scattered a r o u n d the w o r l d that can help y o u , if o n l y you can f i n d it. That's the j o b for Lockheed's D i a l o g , the world's leading o n l i n e i n f o r m a t i o n retrieval system. This c o m p u t e r i z e d sleuth puts you in instant t o u c h w i t h more than 180 databases and provides abstracts of journal articles, c o n ference papers, research reports, patents and news stories — a n d all of this i n f o r m a t i o n goes back over 15 years. D i a l o g covers v i r t u a l l y every f i e l d , f r o m alkaloids to polymers to zinc. All you need to use D i a l o g is a standard c o m p u t e r terminal and a telephone. Your library probably subscribes to D i a l o g . Involved in some phase of a new project! 1 Better get i n v o l v e d first w i t h Dialog. It can save y o u t i m e , m o n e y and effort — a n d lots of each. For more information, contact Dialog Information Services, Dept. 25. 34b0 Hillview Ave., Palo Alto, CA 94304. Call toll-free (800) 227-1927. In California, call (800) 982-5838.
Lockheed DIALOG CIRCLE 133 ON READER SERVICE CARD
Analytical Mill Features of the A-10 Mill include a chamber sealed off from the motor by a labyrinth seal, totally sealed motor housing, a thermo overload protection in the motor, solid-state circuitry, and a 20 000-rpm, V5-hp motor. Tekmar Company 419
Rapid Flow Analyzer RFA-300 System offers the high-speed benefits of FIA combined with the lowdispersion advantage of air-segmented CFA. The system consists of modules and can process samples at a rate of 120-240/h. The analytical cartridges with microflowpath allow reagent and sample volumes in μ ι quantities. Alpkem Corp. 418
aca V Discrete Clinical Analyzer features faster test results for clinical labs at a lower cost than previous models. It can simulta neously process several ion-selective elec trode tests, which are used for procedures such as sodium and potassium assays and do not require test packs, and can run as many as 180tests/h. DuPont 401
Chemicals Counter-Ion 1-Hexadecanesulfonic Acid Sodium Salt (Chem No. 19980) is an alkylsulfonate that should prove useful for basic, positively charged samples for the analysis of drugs and other com pounds commonly found and used in bi ological systems. Kodak 428
Differential Mobility Particle Sizer combines microcomputer automation and submicrometer particle counting and classifying instrumentation. It offers a method of obtaining high-resolution particle data in the 0.01-1.0-μηι range. High-resolution particle sizing allows the operator to observe very slight size differences in aerosols. TSI Inc. 403
966 A • ANALYTICAL CHEMISTRY, VOL. 56, NO. 8, JULY 1984
