NEW PRODUCTS
Chemicals and materials 201 Heat stabilizer. Mark 1984 provides good initial col or, color retention, and longterm heat stability in rigid PVC compounds; imparts crystal clarity to blow-molded bot tles. Witco Chemical 202 Corrosion inhibitor. Drewgard 315, nontoxic compound for use in water systems, pro vides protection similar to heavy metals, without envi ronmental problems. Drew Chemical 203 Dry-film lubricant. Hi-TLube consists of multilayer system of deposits applied to substrate metal by means of "synergistic" bonding of met als and alloys; maintains good lubricity from -360 to 1000 °F. General Magnaplate 204 Surfactants. Four alkyl diphenyl ether disulfonate compounds are suitable for many agricultural formulations such as pesticides. Sandoz Colors & Chemicals 205 Coupling reagent. 92% yield of coupled product with no sulfonation by-product is achieved with 1-(8-quinolinesulfonyl)tetrazole in oligonu cleotide synthesis. Chemical Dynamics 206 Polystyrene. H3E with high stress-crack resistance is suitable for lightweight food containers. Amoco Chemicals 207 Karl Fischer reagent. Hydranal allows titration of water in ketones and alde hydes. Crescent Chemical 208 Polyester dye. In light depth, Polycron Dianix Red BN-SE is clean fuchsia; and in heavy depth, bright bluish red. Atlantic Industries 209 Reference material. 1003a, consisting of 25 g of glass spheres certified for cumulative-size distribution, is for calibrating equipment and evaluating methods for meas uring particle size in 8- to 58-μηι range. National Bureau of Standards
210 Benzamidine HCI. Highpurity grade is haze-free in water and very low in heavy metals; suitable for protein purification. American Re search Products
Literature 211 Laboratory supplies. 108-page catalog lists equip ment for analytical and re search labs. Markson Science 212 Food analysis. 48-page technical guide on use of pH and ion-selective electrodes includes 21 methods for food and beverage industry. Orion Research 213 Liquid chromatography. NewsletterFPLC BioCommuniqué describes latest applications in fast protein, peptide, polynucleotide LC. Pharmacia 214 Research chemicals. Catalog lists more than 1000 organic compounds and intermediates, including liquid crystals. Frinton Laboratories
ards and covers established sampling and analysis procedures, as well as recommended collection equipment. SKC 220 UHV surface analysis. Catalog describes ion guns, charge neutralizers, automatic data systems, and new sample handling and transport devices. Kratos Analytical
228 Laboratory software. Packages cover specific grav ity and density, per cent weight change, statistical data analysis, sample manage ment, and toxicological stud ies. Bren Instruments
labwareand instruments
229 Ultrasonic testing sys tem. Modular computerized unit measures acoustic prop erties over wide range of fre quencies. Matec Instruments
221 Mycoplasma detection kit. DNA-probe procedure reduces test time for detecting mycoplasma bacterium contamination in tissue cultures from days or weeks to less than an hour. Gen-Probe 222 Radioactive particles. Model AKI annular kinetic impactor collects samples of alpha-, beta-, and gammaemitting contaminants, as well as plutonium and fission products. Staplex
215 Phosphate esters. 15page handbook gives physical and performance properties of many surfactants and covers variety of applications, including hydrotropes, lubricants, and metal treatment. Cyclo Chemicals
223 Particle size analyzer. Disk centrifuge produces comparative size distribution curves by photosedimentometry for particles ranging from 0.01 to 60 μητι; ideal for anal ysis of pigments, iron oxides, silver halide emulsions, and small polymers. Vickers In struments
216 Laboratory furnaces. Brochure describes complete line, including muffle furnaces, tube furnaces, and ashing furnaces, as well as custom designs. Lab-Line Instruments
224 Magnetic stirrers. Mod els called type flatspin include remote control version that operates under water in baths, tanks, and other vessels. Baird & Tatlock
217 Physical measurements. 350-page catalog lists more than 2000 instruments for measuring temperature, pressure, flow, pH, sound, humidity, velocity. Transmation
225 HPLC sample introduc tion. Robot sampler automat ically introduces samples from 0.2 μΐ to 2 mL into any liquid chromatograph. Varex
218 Composites. Booklet gives design properties of 62 statically conductive and 29 EMI attenuating composites with resistivity values from 10~ 2 to 1013ohms. LNP 219 Air-sampling standards. Guide to NIOSH/OSHA standards lists more than 550 chemical and particulate haz-
programable, optically encod ed pumping system. FIAtron Laboratory Systems
226 Molecular graphics. Soft ware allows chemists to interactively view, manipulate, and analyze molecular struc tures. Evans & Sutherland 227 Solution handling. SHS300 is automated system that increases precision of ICP, DCP, and AAS instruments through microprocessor-con trolled solution handling and
230 ICP data acquisition. Hardware/software system al lows transient signal measure ment and specialized data processing for Baird's induc tively coupled plasma spec trometers. Baird
Plant equipment and instruments 231 Machinery monitoring. SMS/CAMMS, software ap plications package that oper ates on HP series 200 desktop computers, provides user with current machinery condition, historical vibration trends, and data organization. Structural Measurement Systems 232 Pressure gage. Portable digital indicator made from stainless steel is suitable for static and dynamic pressure measurements required in pharmaceutical manufacture. Valex 233 Mass flowmeter. Unit measures mass flow directly with accuracy of ±0.15% while remaining independent of density, viscosity, temper ature, and fluid inhomogeneity. Exac 234 Infrared thermometer. Portable unit with range from 0 to 500 °C and remote probe accurately checks surface temperature of anything from steel to sawdust without con tact. Pacer Industries For information on these items or numbered ads, see Reader Service Card February 11, 1985 C&EN
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