NEW PRODUCTS
flow cell of a spectrophotometer or in jection loop of an HPLC. The unit can handle up to 19 sets of six samples and can be programmed for up to 100 hours-long protocols. ISCO 405 DNA synthesis. 7500 DNA Synthesiz er, an integrated combination of hard ware, software, and optimized betacyanoethyl phosphoramidite chemis try, can be controlled by an IBM PCAT or compatible computer. DNA fragments of 100-, 120-, and 140-mer can be synthesized. Milligen 406 UV-vis/Near-IR. Cary 2400 spectro photometer extends from the UV-vis to near-IR region (185-3152 nm). The instrument is designed to analyze diffi cult solid samples often found in pho tonic applications. A dual double-pass grating monochromator is featured. Varian 407 70 series video microscopy camera in terfaces with computers for digital imag ing and resolves problems associated with bright field, dark field, and polarized light. A compact remote head features up to 1200 lines of resolution. DAGE-MTI
ICP/MS. Elan inductively coupled plasma mass spectrometer combines
the ion generation characteristics of ICP with the low noise detection capa bility of MS. The instrument is used for low-level multi-element determination in a wide range of sample matrices. The detection limit for a one-minute analy sis is ~ 1 Mg/L. Perkin-Elmer 410 Microtome. Microcut H1200 micro tome prepares samples for electron mi croscopy and is designed for cytochem istry, neuroscience research, and histo logical studies. The microtome's vibrating blade cuts sections of fresh or fixed tissue in thicknesses of 10 μτη to 1,000 μπ\ with minimal structural dam age. Bio-Rad/Polaron 411 Ultracentrifuge. Model L7-65 ultracentrifuge spins samples at 65,000 rpm (485,000 g) and can be used to isolate plasmids, DNA, or RNA using cesium chloride gradients. The ultracentrifuge features automatic soft-start, twostage braking, thumb wheel control
401 UV-vis. Series 5000 double-beam scanning computing spectrophotome ter features a "talk-back" video display that shows all selected parameters and updates the instrument status. Auto matic base-line correction and wave length calibration also are included. Cecil 403 SIMS. MIQ Model 256 ion microprobe features a compact ultra high-vacuum system and three ion sources (liquid metal gallium, duoplasmatron, and ce sium). A variety of samples, including metals, insulators, semiconductors, biological materials, and minerals, can be analyzed. Riber 404 Pharmaceutical testing. Dissolution sampler automates pharmaceutical analysis by collecting and automatical ly transferring samples to either the
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Micro rotary evaporator features a stainless steel bath, three sizes of evaporat ing flasks (50-, 100-, and 250-ml), and variable speed control (80-200 rpm) for evaporation of viscous solutions. Haake Buchler 402
860 A · ANALYTICAL CHEMISTRY, VOL. 59, NO. 13, JULY 1, 1987
NEW
PRODUCTS
sets, digital readouts, built-in diagnostics, and a vacuum-encased induction drive system. Beckman 412 Moisture detection. KFS-186 Karl Fischer aquametry system can be used with any pH meter for detecting moisture in food; grain; paint; paper and petroleum products; drugs; and chemicals. The system uses a solid-state circuit that generates its own polarizing current and displays the end point directly on a pH meter. Lazar 408 HPLC detector. Spectromonitor 3100 variable wavelength LC detector features linear operation from 2.0 to 0.001 AUFS. Absorbance can be measured throughout the UV-vis range (190-700 nm). A 10-mm path length high-efficiency and pressure maxN series fluid cell is included. LDC/Milton Roy 409
employee progress through company training programs. The software is designed for any IBM PC, PC-XT, or compatible computer. J.T. Baker 415 Graphics. Wisconsin Interactive Molecule Processor software generates publication-quality chemical structures and diagrams using the Apple laser-writer printer, H P laser jet, HP7475A, or compatible plotters. The software can be used with any IBM PC or compatible computer. Aldrich 416
Manufacturers' Literature
Software
Electrophoresis. Brochure describes different types of precast polyacrylamide gradient and isoelectric focusing gels. Gel casting supplies, electrophoresis units, reagents, and accessories also are listed. A chart is included to indicate the appropriate gel to be used with specific electrophoresis equipment. 12 pp. Isolab 418
Safety. Saf-T-Manager software is used to retrieve and print material safety data sheets; access information on spill-response procedures, recommended protective clothing and equipment and related health hazards; maintain a chemical inventory; and track
LC/MS. The first issue of TSPReport, a monthly publication concerning the most recent developments and applications of LC/MS and LC/MS/MS, previews the latest developments in collision-induced dissociation thermospray LC/MS. 4 pp. Finnegan MAT 421
MIMHI HUB TRAP
Scales. Brochure describes weighing equipment used in cosmetic and pharmaceutical industries. Applications of scales and weighing systems are described for receiving and shipping, central weighing and dispensing, quality control and analysis, and fill-control batch-weighing. Mettler 419 Detector. Brochure describes the 112 UV-vis detector, which is designed for life science and industrial laboratories and can be used for HPLC, gravity flow, and low-pressure chromatography. A chart lists available sensitivity ranges as a function of path length. 6 pp. Gilson Medical Electronics 420 Applications note. Electrochemical techniques that evaluate the corrosion resistance of metal finishes are described. Corrosion rate determination, porosity measurements, polishing evaluation, localized corrosion failures, and coating tests by electrochemical impedance techniques are presented. 8 pp. EG&G Princeton Applied Research 422
Catalogs Reagents. Catalog lists more than 500 immunochemicals and reagents. Descriptions and specifications of products including Nephelometric grade antisera and calibrators for in vitro diagnostics as well as a range of immunochemicals for research and development applications are provided. 60 pp. Sigma 424 Radiochemistry. Catalog features scintillation counting supplies, radiochemicals, and radiation survey equipment. Also included are biotechnology products, chromatography supplies, electrophoresis equipment, desiccators, liquid-handling equipment, and safety supplies. 160 pp. Research Products International 425
Introducing the new Model 4460 sample concentrator: • Wide bore capillary capability at no extra cost. • Full compliance with EPA protocols for standard methods. • Microprocessor for easy, automated operation. Fully programmable. • Times and temperatures for standard methods (including EPA 502.1/601 and 524.1) are default programmed. • Autosampler optional. Up to 76 vials, auto rinse. Write or call for details. Phone (409) 690-1711. P. O. Box 2980, College Station, TX 77841.
O•I•CORPORATION CIRCLE 120 ON READER SERVICE CARD
862 A · ANALYTICAL CHEMISTRY, VOL. 59, NO. 13, JULY 1, 1987
Spectral interpretation. Catalog describes audio-visual programs for infrared, NMR, Raman, ESR, and mass spectral interpretation. Also included are presentations on Beilstein, Gmelin, chemical abstracts, and the library sciences. Science Media 426 Air monitoring. Catalog describes instrumentation for measuring air velocity, relative humidity, temperature, RPM, pressure, dew point, pH, conductivity, and dissolved oxygen. Handheld digital display units, multiplefunction instruments, and meters with data-logging and computer-interfacing capabilities are featured. Solomat 427
