NEW PRODUCTS
Elemental analysis. NA1500 series 2 nitrogen, carbon, and sulfur analyzer accommodates sample sizes from 0.1 to 100 mg. Because the combustion gases are not diluted, split, or chemically altered, the analyzer can be coupled with any type of mass spectrometer system. Carlo Erba Instruments 206
PS200 automated mercury analyzer consists of a mercury cold vapor double-beam detector, random access autosampler, IBM-compatible PC, and software. Leeman Labs 201
Instrumentation P r o t e i n s . Centriprep-100 concentrator allows the separation of low molecular weight proteins from cells, cell debris, or large proteins in solution. Centrifugal force drives suspended m a t e r i a l s away from t h e membrane, while membrane-permeating species and solvent are propelled through the membrane. Amicon 202 Ozone. AirZone Model 150 ozone generator produces a known concentration of ozone between 0.05 and 150 ppm using ambient air as the input gas. Applications include water pollution control studies and atmospheric research. Enmet Analytical 203 SEM. Model ABT-2200 scanning electron microscope, designed for the inspection of integrated circuits, can accommodate wafers up to 200 mm. The system incorporates a thermally assisted field emission electron gun that operates from 500 to 2415 V. International Scientific Instruments 204 ICP-AES. Maxim ICP spectrometer provides simultaneous and sequential analysis of up to 60 elements. Features include a 200-wavelength array, high-resolution Echelle optics, and an axial plasma source. Applied Research Laboratories, Fisons Instruments 205
Molecular beams. Supersonic molecular beam systems consist of a molecular beam source, UHV sample chamber, and detector. Applications include chemical beam epitaxy, laser-coupled beam studies, molecular and atom beam scattering, and plasma and flame analysis. VSW Scientific Instruments 207 Hydrogen. Packard Model 8400 hydrogen generator uses a solid polymer electrolyte cell and large water reservoir to produce hydrogen at rates up to 500 cc/min. The unit can be operated at 117 or 230 VAC; adapter kits are available for 100 and 240 VAC operation. Alltech Associates 208 M i c r o p h o t o m e t e r s . Models MPM 400 and MPM 800 microscope photometers cover the spectral range of 2 4 0 - 2 1 0 0 nm. Dedicated software p e r m i t s one- or two-dimensional photometric mapping as well as spectrophotometric, statistical, and kinetic analysis. Carl Zeiss 209 Ion measurement. Chloride Station is designed for the determination of chloride ion concentration in foods, beverages, and environmental samples. Features include five measurement modes; a seven-segment, fourdigit LED display; a n d t i t r a t i o n times of < 30 s. Buchler Instruments 210 Gels. COPS column protection system prevents damage or loss of soft gels used in preparative-, pilot-, or production-scale applications. The system shuts down the pump, isolates the column, and sounds a warning if sensors detect air or high pressures. Dorr-Oliver 211 Oxygen. Series 300C oxygen analyzers are designed for the continuous
516 A · ANALYTICAL CHEMISTRY, VOL. 63, NO. 9, MAY 1, 1991
monitoring of trace or percent oxygen in potentially hazardous environments. The analyzers are unaffected by flow rate, position, motion, vibration, or the presence of other gases. Teledyne Analytical Instruments 212 LC. Model 1350 soft-start HPLC pump, which prevents column shock by gradually ramping the flow rate to the final level, is equipped with a diagnostic output for simplified troubleshooting. The titanium and stainless steel versions can withstand extremes in pH and salt concentration. Bio-Rad Laboratories 213
Software Correlation. 2DCORR, which runs under Lab Calc on PS/2, PC, and compatible computers, correlates different regions of a spectrum or different types of spectra to aid in band assignment. The correlation matrix can be displayed as a contour map, a hidden line perspective plot, or as individual correlation plots. Galactic Industries 214 Data plotting. Graph version 3.0 allows data transformations with operators including log, exp, sqrt, add, subtract, reciprocal, integral, and derivative. Features include multiple y-axis p l o t t i n g a n d d i g i t a l d a t a smoothing. MicroMath Scientific Software 215
ACS Publications and Services Acid rain. Free information pamphlet focuses on the need for a better understanding of the chemistry of pollutants released into the atmosphere and the resulting acidic fallout. A list of suggested readings is included. 8 pp. 216 Companies interested in a listing in this department should send their releases directly to ANALYTICAL CHEMISTRY, Attn:
New Products, 1155 16th Street, N.W., Washington, DC 20036.
Sample preparation forXRF-AA-ICP-CHEM.
M3 ΕΜΠΗ
NEW
PRODUCTS chromatograph/mass - selective detec tor and gas chromatograph/IR detec tor for the analysis of the contents of a h a z a r d o u s - w a s t e d r u m . 8 pp. Hewlett-Packard 224
with
Claisse Fluxes
Q-Mass 910 bench-top mass spec trometer for GC/MS provides classical electron ionization mass spectra that can be searched with an optional Ν 1ST mass spectral database and software. Perkin Elmer 217
(Borates and Phosphates) V J e t a new perspective on analysis and better results. The CLAISSE FLUXES have exceptional qualities due to their PURITY and COARSE texture. Claisse Fluxes are Tip-Top. FEATURES • free-flowing crystals • low surface area • high density • fused, not mixed • popular and special compositions CONSEQUENT ADVANTAGES • no loss from static electricity • no loss by splattering or foaming on heating • very low water absorption • no uncertainty on quantity weighed • no segregation in containers FREE SAMPLE upon request
Education Division program summaries. Free brochure describes ACS educational activities directed toward precollege and college stu dents, chemistry teachers and practi tioners, and persons interested in the chemical sciences. 12 pp. 218 R e c o r d - K e e p i n g . "Electronic Record-Keeping for Patent Purposes: Cautions and Pitfalls" is a free pam phlet that presents legal consider ations involved in keeping electronic records and alerts readers to the pre cautions necessary for maintaining research records in computers and data storage devices. 3 pp. 219
Manufacturers' Literature Gases. Brochure features catalytic bead, semiconductor, electrochemi cal, and IR sensors for detection of 0 2 , CO, H 2 S, Cl 2 , S 0 2 , N 0 2 , NO, H 2 , C0 2 , NH 3 , and combustibles. 6 pp. Sierra Monitor Corp. 220 F l o w a n a l y s i s . Booklet describes segmented flow analyzers for analyt ical and process applications. More than 80 application notes are includ ed. 120 pp. Skalar 221 Newsletter. Particle Technology News, Vol. 1, includes information on the adsorption of proteins to polystyrene latex and on the assay of latex-bound proteins. 4 pp. Seradyn 222
For world-wide sales, address of local agents and service information please call or write to: corporation scientifique claisse inc.
2522. chemin Sainte-Foy Satnte-Foy (Québec) Canada G1V 1T5 Tel: (418) 656-6453 Fax; (418)656-1169 Telex: 051-31731
The First and Finest in Fusion.
Newsletter. Chromatogram, Vol. 11, No. 3, includes articles on immunoaffinity isolation of bioactive antigen receptors and on separation of oxysterols by HPLC and TLC. 12 pp. Beckman Instruments 223 Hazardous waste. Application brief discusses the use of a combined gas
CIRCLE 22 ON READER SERVICE CARD
518 A · ANALYTICAL CHEMISTRY, VOL. 63, NO. 9, MAY 1, 1991
Chromatography. The Supelco Re porter, Vol. IX, No. 6, features articles on capillary GC analyses of petro leum products and on the design and operation of gas pressure regulators. 20 pp. Supelco 225
Catalogs L a b o r a t o r y e q u i p m e n t . Catalog contains i n s t r u m e n t a t i o n , safety products, and supplies. Included are laser safety glasses, glove boxes, bal ances, fume hoods, pH meters, glass ware, and a complete line of electro phoresis equipment. Whatman LabSales 226 B i o c h e m i c a l s . Catalog includes amino acids, lipoproteins, bioactive peptides, immunochemicals, molecu lar biology products, affinity chroma tography media, buffers, and protein sequencing reagents. Sigma 227 C h e m i c a l s . Catalog includes r e agents for electrophoresis, peptide synthesis, enzyme studies, plasmid isolation, molecular biology, and bio technology research. 300 pp. Fisher Scientific 228 Instrumentation. Catalog includes agitators, balances, electrodes, envi ronmental apparatus, flask holders, incubators, pumps, stirrers, slides, and thermal analysis equipment. 50 pp. Eberbach 229 S c i e n t i f i c p r o d u c t s . Catalog in cludes safety equipment, balances, clamps, flowmeters, hotplates, plasticware, racks, thermometers, lamps, pipettors, and tubing. 32 pp. Lux Sci entific Instrument Corp. 230 Safety. Catalog features equipment for p e r s o n a l protection, s t o r a g e , monitoring, and handling. Also listed are reference m a t e r i a l s such as books, computer products, labels, and signs. 200 pp. Aldrich Chemical Co. 231
For more information on instrumenta tion 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.
