NEW
PRODUCTS tion pump, collect data from up to four detector signals, and analyze data using up to four sets of analysis p a r a m e t e r s for each method. The software runs under Microsoft Win dows, Version 2.11 or 3.0. Gilson Medical Electronics 423
ACS Publications and Services
UNISCAN video densitometer is designed to scan TLC plates using a CCD video camera and an IBM-compatible computer. The video camera focuses on the TLC plate inside the cabinet and sends a signal to the digitizer in the CPU module. Analtech 415
Camera. MC 80 35-mm microscope camera features a v i b r a t i o n - f r e e shutter, 100% light-to-film measure ment, and a 2.5x projection lens for direct high-contrast imaging onto film. The camera accommodates 2 5 6400 ASA film and offers auto expo sure with 35% center-weighted me tering. Exposure time ranges from V125 to 250 s in auto mode and ex tends to 4000 s in manual mode. Carl Zeiss, Inc. 416 H 2 S a n a l y z e r . Model 825RD/102 analyzer measures H 2 S in the ppb, ppm, or percent range in < 3 min. Designed for portable or continuous stream monitoring in the laboratory, field, or plant, the analyzer is based on ASTM-approved methods D-4085 and D-4045. The system can be used to determine H 2 S levels in coke oven gas, well logging areas, and geothermal applications. Houston Atlas 417 M i c r o w a v e p r e p a r a t i o n . MDS2000 microwave system p r e p a r e s samples for atomic absorption and emission spectroscopic a n a l y s i s . Menu-driven programming can be used to regulate the microwave pow er, run time, pressure control set point, and run time at the control point for each sample. Twenty or more multistep sample programs can be stored and printed. CEM Corp. 418 Monochromator. Model VM-504 is a 0.39-m focal length automated tri ple-grating vacuum monochromator capable of scanning from 115 nm to 84 μπι. Accessories include light
sources, detectors, data acquisition software and electronics, and vac u u m pumping systems. Acton Re search Corp. 419 RIA. Q C - G a m m a , a s i n g l e - w e l l gamma counter, features a built-in data processor and graphics printer, > 75% counting efficiency for 1 2 5 I, and dual isotope counting for 1 2 5 I and 5 7 Co. Real-time assay results are generated by 11 preprogrammed RIA data reduction methods, includ ing logit-log and point-to-point lin ear and log. Bioscan 420
Software Graphics. SigmaPlot 4.1 can be used to create publication-quality charts and graphs and is designed for use with IBM and compatible PCs. Fea tures include a reduction in required memory size, increased font and out put support, drop-down menus, userdefined default options, an informa tion status bar, additional curve-fit files, and improved documentation. Jandel Scientific 421 Statistics. MINITAB is an interac tive software system for organizing and analyzing data and reporting statistical results. More t h a n 180 commands analyze data in a row-by column worksheet. The software is designed for IBM PCs and compati ble computers as well as most main frame computers. Minitab Inc. 422 HPLC. 715 HPLC system software can control up to four elution pumps or three elution pumps and one injec
842 A • ANALYTICAL CHEMISTRY, VOL. 63, NO. 17, SEPTEMBER 1, 1991
Project Seed. Pamphlet describes career development activity for eco nomically disadvantaged high school students. Students work for 10 weeks during the summer in research labo ratories under the supervision of a researcher, earning a stipend and participating in research. Informa tion regarding selection of participat ing i n s t i t u t i o n s a n d s t u d e n t s is given. 424 Issues in Peer Review of the Sci entific Basis for Regulatory Deci sions. Booklet presents issues to be considered in the development of guidelines for peer review in the reg ulatory process. A suggested reading list is included. 31 pp. 425 The Waste Management Manual for Laboratory Personnel. Hand book describes current federal regu lations regarding proper m a n a g e ment of laboratory chemical wastes, the complexities of compliance, and possible solutions. Appendices in clude guidelines for the identification of hazardous wastes and segregation of wastes for DOT shipment, exam ples of p o t e n t i a l l y i n c o m p a t i b l e wastes, and further resources. 426
Manufacturers' Literature Software. Brochure describes LabWindows 2.0 software, which can be used by QuickBASIC a n d C pro grammers for data acquisition, in strument control, and data analysis applications. The User Interface Li brary, which is designed to create and control graphic user interfaces for application programs, is high lighted. 8 pp. National Instruments 427
For more information on instrumen tation and software products, and/or to obtain the free available informa tion on other listed items, please cir cle the appropriate numbers on one of our Readers' Service Cards.
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Dissolution testing. Data sheet describes the features of the Bio-Dis II dissolution testing instrument, which is designed to test pellets, tablets, and transdermal patches under a variety of pH conditions. A chart lists the technical specifications and available accessories. VanKel Industries, Inc. 428 HPLC. Brochure discusses the automated isocratic HPLC system designed for QA/QC applications. Each component of t h e s y s t e m is d e scribed, including the 307 pump, the 231/401 autosampling injector, and the 115 UV detector. Gilson 429 LC. Varex Report, Vol. 4, No. 2, includes information on continuously adjustable piston (CAP) columns for HPLC and on preparative and semipreparative HPLC accessories. 8 pp. Varex Corp. 430 F o o d t e c h n o l o g y . Bulletin 1611 discusses electrophoretic and m i croplate techniques for the analysis of foods. Applications of both techniques are described. Bio-Rad Laboratories 431 Electrochemistry. Brochure highlights the features and performance advantages of the Model 273A potentiostat/galvanostat designed for exp a n d e d electrochemical m e a s u r e m e n t capabilities. 6 pp. EG&G Princeton Applied Research 432 Brochure. Vol. 5, No. 1 of Rainin Dynamax Review discusses the Model PS3 peptide synthesizer, temperature-dependent chromatographic fractionation of FK-506 conformat i o n a l isomers, a n a l y s i s of basic drugs on SynChropak SCD, and applications of immobilized protein A. 12 pp. Rainin Instrument Co. 433
Catalogs Gases. Catalog features a reference guide on electronic gases, including ULSI grades of hydrogen chloride, nitrous oxide, sputtering-grade argon, and other semiconductor process gases. Also included are gas cabinet systems as well as g a s - h a n d l i n g , safety, and detection equipment. 144 pp. Scott Specialty Gases 434 F o r e n s i c s . Catalog includes more than 300 forensic chemicals and supplies such as controlled substances, deuterium-labeled compounds, pure drug standards, pseudonarcotics and pseudocorpse formulations, and re-
lated substances. Licensing and ordering requirements are also provided. 73 pp. Sigma Chemical Co. 435 C h r o m a t o g r a p h y . Catalog includes products for sample preparation, TLC, analytical and preparative HPLC, high-performance biochromatography, and process-scale chromatography. EM Separations 436
Say Goodbye to Either/Or Electrochemistry
Instrumentation. Catalog lists pH meters and electrodes, ion-selective electrodes, resistance thermometers, t i t r a t i o n vessels, pumps, s t i r r e r s , photometers, laboratory recorders, and buffer solutions. 48 pp. Metrohm 437 Life s c i e n c e s . Catalog describes microscopes, data acquisition hardware and software, intracellular and extracellular amplifiers, electrometers, microinjection pumps, and microelectrodes. 88 pp. World Precision Instruments 438 Clean r o o m . Catalog features products such as clean room paper, tacky mats, gloves and garments, HEPA filters, and wipes. Larger items such as portable clean rooms, laboratory chairs, and storage cabinets are also described. 16 pp. Midwest Scientific 439 Isotopes. Catalog lists stable isotopically labeled compounds, including deuterated NMR solvents and reagents, specialty gases, biomedical products (e.g., amino acids, steroids, and sugars), and GC/MS standards (including 13 C-labeled and native chlorodibenzo-^>-dioxins). Cambridge Isotope Laboratories 440 Lab supplies. Catalog includes supplies for industrial, academic, and government laboratories. A comprehensive index lists all products from air samplers and animal equipment to water-sampling items, reagents, and chemicals. 950 pp. J. & H. Berge, Inc. 441 L a b o r a t o r y e q u i p m e n t . Catalog features equipment for biological, analytical, and environmental applications, including autoclaves, homogenizers, pipettors, shakers, automatic s a m p l e r s , a n d s t i r r e r s . 96 pp. Tekmar 442 HPLC. Catalog presents information on HPLC separation mechanisms, applications, packings and columns, column fittings, standards, and instrumentation. 118 pp. Bio-Rad 443
Square Wave Stripping 80 ppb Lead Mercury Microelectrode
ost electrochemical software is designed to do either sophisticated research or routine measurements. In the past, if your lab did both, you were stuck.
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Either you had to buy two separate packages, which meant satisfying the compatibility requirements for both and learning two very different environments. Or you had to buy one package and make do. Well say goodbye to eitherjor electrochemistry. The Model 270 Electrochemical Analysis software from EG&G Princeton Applied Research is unmatched on all counts—power, versatility, and ease of use. Consider just this small selection of Model 270 advantages: • Both time-tested hardware (Model 273 Potentiostat) and state-of-theart computer environment (IBM platform, pull-down menus) • Automatic control of both the PARC Model 303A SMDE and a selection of microelectrodes • Traditional voltammetry/polarography and fast Square Wave • Easy-to-learn Standard Mode for routine use and feature-rich Expert Mode for finer experimental control So if you typically do ground-breaking research one day and routine measurements the next, say hello to total electrochemistry. Call for information today at 1-609-530-1000.
EG&G PARC P.O. BOX 2565 · PRINCETON, NJ 08543-2565 (609) 530-1000 · FAX: (609) 883-7259 Circle 34 for Literature. Circle 35 for Sales Representative.
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