TWO

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NEW

PRODUCTS

Cell culture. Brochure features tech­ nical data on cell culture and bacterial bioreactors for biotechnology applica­ tions, including the ADI1020 Bio-Pro­ cessor, which monitors and manages the various parameters involved in the growth of a culture. Applikon 422 Brochures. Four brochures feature in­ formation on the Drystar dry vacuum pumping system, the Temescal pro­ grammable sweep, the VersaVac 5 thermocouple/ionization gauge con­ troller, and the 533 total pressure gauge controller. Edwards 423 Viscosity. Technical Papers on Vis­ cosity Measurement and Control, an expanded directory of rheological liter­ ature, encompasses more than 80 titles in 11 categories such as food, paint and coatings, and biological fluids. Brookfield Engineering Labs 425 Grignard reactions. A Handbook of Grignard Reactions, designed for syn­ thetic chemists in the pharmaceutical and related industries, illustrates 48 examples of typical Grignard reactions. Citations of primary literature are in­ cluded. M & Τ Chemicals 426

Catalogs HPLC. Catalog provides information on a variety of HPLC accessories, in­ cluding injection valves, the model 505 column oven, the TC-10 tube cutter, and bioclean components. 24 pp. Scien­ tific Systems 428

Chromatography. Vials and Accesso­ ries for Chromatography features autosampler vials, crimpers, seals, col­ umns, developing chambers, rotary evaporators, and micropipettes. 23 pp. Wheaton 433

Chemicals. 1989-90 general chemical catalog lists more than 4000 ACS, USP/NF, and FCC grade chemicals for laboratory, research, and pilot-scale applications. Specifications for storage and shipping also are included. 408 pp. Spectrum 430 Catalog. Products for Life Sciences Research describes the apparatus and filter media for a variety of separation techniques, transfer methods, solidphase assays, and related procedures. Schleicher & Schuell 431 Wall chart. Brochure/wall chart fea­ tures the Biofuge 17 and Biofuge 17R high-speed table-top centrifuges. The wall chart describes the various rotors, buckets, adapters, tubes, and accessor­ ies available. Baxter Healthcare 432

T E K N I V E N T

DS-130F field emission scanning elec­ tron microscope features high resolu­ tion (1 nm) in the top stage and accom­ modates samples as large as 6 in. in diameter in the bottom stage. At 1 kV beam energy, the microscope provides 4 nm and 10 nm resolution in the top and bottom stages, respectively. Internation­ al Scientific Instruments 402

I N T R O

VECTOR/TWO Workstations for Mass Spectrometers The New Vector/Two Provides I Multi-Tasking Performance For High Sample Analysis Throughput I Simultaneous High Speed Data Acquisition/Processing I Instrument Control For Magnetic Sector and Quadrupole GC/MS I Easy To Operate, Menu-Driven Mouse Control

TEKNIVET ADDED POTENTIAL FOR ANALYTICAL INSTRUMENTS

149 WELDON PARKWAY · SUITE 115 · MARYLAND HEIGHTS, MO 63043 (314)994-0500 · (800)727-1575

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606 A · ANALYTICAL CHEMISTRY, VOL. 6 1 , NO. 9, MAY 1, 1989