NEW
PRODUCTS c h e m i c a l s . A list of i n f o r m a t i o n sources is included. 24 pp. 218
Catalogs
Chemists in the Classroom. Free booklet c o n t a i n s s u g g e s t i o n s for chemists who are acting as visiting scientists in elementary or middle school classrooms. Advance planning, safety considerations, and follow-up activities are described. 7 pp. 219
Viscometers. Catalog includes dialreading, digital, and cone/plate viscometers. Also listed are rheometers, temperature baths, and viscosity standards. 32 pp. Brookfield Engineering Laboratories 227
Manufacturers' Literature
Model 3550 automated TO-14 cryogenic preconcentrator features two distinct flow paths, automatic internal standard introduction, and variable loop injection. Nutech 214
import 3D models and rotate them about any axis. Computations for analyzing the structures of molecules include energy minimization and molecular dynamics u s i n g t h e MM2 force field. C a m b r i d g e Scientific Computing 215
ACS Publications and Services Employment and career services. Free brochure describes ACS prog r a m s designed to assist government, industrial, and academic emp l o y e r s in r e c r u i t i n g s c i e n t i f i c personnel. 216 College chemistry consultants. Written to provide academic institutions and other organizations access to expert advice on scientific and educational issues, this free booklet describes C.jS, the ACS College Chemi s t r y C o n s u l t a n t s S e r v i c e . An application for consulting services is included. 217 RCRA & Laboratories. Developed for generators of laboratory wastes, this free handbook describes responsibilities associated with proper disposal of hazardous wastes under federal Resource C o n s e r v a t i o n a n d Recovery Act regulations and suggests general procedures for managem e n t and disposal of l a b o r a t o r y
Materials characterization. Newsletter, Vol. 6, No. 1, contains articles on microvolume SIMS for quantitation of sulfur contamination in HC1 rinse solutions and on XPS analysis of conducting or insulating material surfaces. 12 pp. Charles Evans & Associates 220 SFE. Brochure describes modular SFE systems for sample preparation, which feature quick-load sample cartridges, syringe-pump fluid delivery, temperature control to 150 °C, and menu-based pump control. 8 pp. Isco 221 Spectroscopy. Brochure highlights the FluoroMax spectrofluorometer, which features a 1-ms data acquisition rate, autocalibration, and menudriven computer control. Spex 222
F u m e hoods. Catalog describes Protector laboratory fume hoods. Specifications, dimensional data, and accessory information are provided. 28 pp. Labconco 228 Weights. Catalog features avoirdupois and metric weights and weight sets. Weight tolerance c h a r t s and conversion factors for units of mass a r e p r o v i d e d . 56 p p . Rice L a k e Weighing Systems 229 S c i e n t i f i c p r o d u c t s . Catalog includes calculators, centrifuges, cuvettes, dispensers, electrophoresis supplies, filters, funnels, meters, molecular biology products, pumps, and timers. 140 pp. PGC Scientifics 230 LC. Catalog contains columns; solvent delivery system replacement parts; detector components; and products for filtration, sampling, fraction collection, and data h a n dling. 68 pp. Perkin Elmer 231
Electrochemistry. Booklet on stripping potentiometry provides information on theory, interferences, ins t r u m e n t a t i o n , precision and accuracy, and sample pretreatment. 32 pp. Radiometer Analytical A/S 223
Filtration. Catalog contains products for cell culture/biotechnology, HPLC, environmental monitoring, and microbiological analysis. Included are filter holders, funnels, and capsule filters for large-volume filtration. 200 pp. Gelman Sciences 232
Newsletter. Varian Instrument Applications, Vol. 20, No. 1, includes articles on confirmation analysis of chlorofluorocarbons by GC/MS and on diffuse reflectance UV-vis studies of paper. 16 pp. Varian 224
AA. Catalog includes lamps, burner system and ICP torch components, sampling supplies and accessories, graphite furnace tubes, reference and training materials, and standards. 64 pp. Perkin Elmer 233
NMR. Brochure highlights the Model R-1500 60-MHz FT-NMR spectrometer, which allows chemical shift values, integration values, and acquisition and processing parameters to be reported directly on the spectrum copy. 4 pp. Hitachi Instruments 225
P e r s o n a l c o m p u t e r s . Catalog describes PC systems, acquisition and analysis software, data acquisition hardware, signal conditioning modules, and motion control products. 84 pp. CyberResearch 234
C h r o m a t o g r a p h y . Bulletin describes hydrophobic interaction chromatography of proteins using SynChropak Propyl and related supports. Loading capacities and applications are discussed. SynChrom 226
For more information on instrumentation and software products, and/or to obtain the free available information on other listed items, please circle the appropriate numbers on one of our Readers' Service Cards.
590 A · ANALYTICAL CHEMISTRY, VOL. 63, NO. 10, MAY 15, 1991
