NEW PRODUCTS • Chemicals and materials
companies that provide cleanup services and materials. Devo Enterprises
201 Transition-metal sulfides. Cadmium and zinc compounds for preparation of single crystals, thin films, and powders for luminescence studies are available in particle sizes of 2-3 pm and impurity levels as low as 0.00001%. Atramet
208 Testing instruments. Catalog features lab equipment for measurement of temperature, pH, weight, volume, viscosity, color, and flashpoint of paints and coatings, adhesives, pharmaceuticals, or cosmetics. Thomas Scientific
202 Perfluoropolymer. Semicrystalline copolymer of tetrafluoroethylene and perfluoromethylvinylether can be used for high-temperature molding, extrusion, and film and coating applications. Ausimont USA
209 Immunochemicals. Catalog includes more than 1,700 items of primary and secondary antibodies, antibody conjugates, avidin/biotin reagents, purified
205 Sieving standards. Precision soda-lime glass microspheres designed for verification of particle measuring instruments are available in micron and submicron sizes for laser, sedimentation, and electrozone analyzers, or in larger sizes for electroformed and woven wire sieves. Gilson 206 Adhesive. Glue made from soy protein and phenolic or aminoplast resins for use with variety of wood-based products can be used with cellulosic filler such as agricultural crop wastes or forest product wastes to become a thermoset composite for extrusion and compression molding. United Soybean Board
• literature and services 207 Bioremediation. Industry guide includes information about 270 U.S. and Canadian 72
APRIL 29,1996 C&EN
• Instruments and labware 214 High-speed analysis. Chromatograph with time-offlight mass spectrometer has fast detection system (runs components of EPA TO-14 test in less than four minutes) with windowed data system for calibration, quantitation, and library searching. Leco 215 Conductivity meter. Diagnostic tool for silicon-based or polymer-based microelectronics and optical coatings allows for nondestructive thermal resistance and thermal conductivity measurement of thin films in thickness range of submicron to tens of microns, or can be configured for thicker films. Inrad
203 Ames mutagenic assay. Kit utilizes six bacterial strains (Salmonella typhimurium) with 384-well microtiter format and colorimetric detection to test chemicals for potential carcinogenic effects; available in manual and automatic versions and includes analysis software. Xenometrix 204 Airborne emissions sorbents. Class of naturally occurring calcium carbonates for fluidized-bed combustors or furnaces reduces emissions of SOx, NOx, CO, and particulates more effectively than limestone or other calcitic compounds; can be used at wide range of injection temperatures (1,200-2,700 °F). Novacon
with information about custom and personalized equipment. Bellco Glass
immunoglobulins, growth factors and interleukins, and enzyme substrates and buffers for molecular biology, analytical cytology, and cell biology applications. Sigma Chemical 210 Gas sampling. Catalog includes products for gas chromatography such as capillary columns, autosampler vials, and syringes and products for industrial hygienists such as detector tubes and portable and fixed gas detectors. AFC International 211 Process equipment. Brochure describes custom design of corrosion-resistant heat exchangers, reactors, piping systems, distillation columns, and other devices made from titanium, zirconium, tantalum, niobium, and nickel alloys. Astro Metallurgical
216 Infrared spectrometer. Instrument with software uses interchangeable beam splitters, detectors, and sources for nearIR to mid-IR (14,000 to 350 cm-1) with scanning speeds from 0.32 mm per second to 25.2 mm per second and resolution from 64 to 0.5 cm-1. Oriel Instruments 217 Purified lab water. Freestanding or wall-mounted unit includes prefiltration system, activated carbon absorption, reverse osmosis, and mixedbed deionization with 0.2-pm final filtration to generate USPgrade water from tap water; available in 75- and 150-L-perhour versions. Zenon 218 Solvent extraction. Device requires as little as 50 ml_ of solvent to carry out Soxhlet extractions with 95% solvent
212 Solvents. Catalog features several grades of high-purity filtered chemicals packaged under inert gas for HPLC, GC, spectroscopy, residue analysis, biosynthesis and sequencing, pesticide protocols, and volatile organic analysis. Spectrum 213 Lab glassware. Catalog offers pipettes, shakers, stirrers, rockers, roller apparatus, and other general labware along
219 Raman microscope. Spectrometer and fiber-coupled microscope is designed for realtime, noncontact compositional analysis, permitting 3-D mapping and fluorescence imaging. Kaiser Optical Systems 220 Microbalance. Scale has capacity of 5.1 g and reproducibility rating of ± 1 pg with software that allows for automatic
air buoyancy correction and identification of tare weights, initial sample weights, and backweighed values. Sartorius
• Plant equipment and materials 221 Solvent recovery. On-site system with safety controls uses vacuum assist for low-temperature distillation; automatically feeds solvent from waste drums into the unit. Solvent Kleene 222 Emissions monitors. Transportable devices use nondispersive IR, chemiluminescence, or UV technology to detect NOx, S0 2 , CO, C0 2 , and 0 2 for stack testing or for use as backup for permanently installed stack systems. Horiba 223 Fermentation analysis. Mass spectrometer for process measurement can analyze several gas species simultaneously at parts-per-million levels; has 32 input lines (24 sample, 8 calibration). Fisons 224 Ammonia analysis. Process instrument for municipal or industrial wastewater treatment facilities uses UV measurement at multiple wavelengths to test before and after addition of bleach to samples. Applied Spectrometry 225 Batch control. System employs pressure control separator-bypass circuit between reactor and overhead condenser to eliminate entrainment of offgases and help improve condenser cooling capacity. WolfTek
recovery using automatic hot air evaporation and adjacent cold trap without circulating oils or water. Science/Electronics
For information on these items or numbered ads, see Reader Service Card
