N e w Products
Labwareand instruments 100 Ultrafiltration for SEM. Membranes with pore diameter of 15 A pass aqueous solvents, are invisible under microscope. Amicon 101 Hard TLC plates. Spots can be identified with pencil without damaging surface. Analabs 102 Pocket thermometer. Reads ° F or ° C from - 5 0 ° C t o 1100° C with optional 0.1° C accuracy. Atkins 103 Dialysis concentrator. Faster, unattended unit for molecules larger than 15,000 molecular weight. Bio-Molecular Dynamics 104 Liquid dispensers. Sizes cover 0.1 ml to 50 ml with 1 % accuracy, 0.1 % reproducibility. Brinkmann 105 Balances. Low-cost analytical and top-loading models for research or education. Burrell 106 Nonclogging sampler. Portable unit for water sampling in remote areas. Environmental Measurement Systems 107 Fraction collector. Programable unit for liquid chromatography. ES Industries 108 Combination instrument. Combines spectrophotometry, fluorometry, pH, and dissolved oxygen for teaching labs. Haake 109 Tabletop centrifuge. Refrigerated to - 2 0 ° C, spins to 16,000 rpm at 20,000 G. Lab-Line Instruments
Plant equipment and instruments
129 Solar energy film. 2 1 minute, 16-mm color film on free loan for teaching state of the art. ERDA
Chemicals and materials
114 Desalination membrane. Reverse osmosis system at price competitive with other methods. Ajax International
130 Chemical catalog. 368 pages, includes safety, toxicology data. MC/B Manufacturing Chemists
146 Surfactants. Sorbitol esters, fatty acid esters, and others. Emery Industries
131 Coal & oil analysis. How to do it by atomic absorption. Varian Techtron
147 Benzidine substitute. 3,3',5,5',-tetramethylbenzidine for forensic chemistry. Tridom Chemical
132 Filter membranes. Technical data and catalog for porous polycarbonate membranes. Nuclepore
148 Polar lipids. Both natural and synthetic available in 9 9 % pure form. Avanti Biochemicals
133 Thermal analysis. Five new application studies detailed. Perkin-Elmer
149 Bacteriostatic agent. Liquid for protecting leather, gums, starches, other organics. GAF
115 Eyewash bottle. Pocket-sized for emergency treatment. Bel-Art 116 H2S detector. For continuous remote monitoring of work areas. Bullard 117 Self-cleaning electrodes. Improved cycling time and longer-lasting scrubbers for pH electrodes. Electrofact 118 Ion exchange. Continuous system is computer controllable. Iconex 119 Solvent vapor recovery. Activated carbon system gives nearly 100% recovery. Interdyne 120 CO alarm. Detects 100 to 500 ppm, gives visual and audio alarm. Mine Safety Appliances 121 Toxic vapor monitor. OSHA-approved unit for daily rental, analysis services also offered. Pollution Control Science 122 Boiling point monitor. For continuous use by hydrocarbon refiners. UOP 123 Sound measuring set. OSHA-approved meter and calibrator for on-the-job monitoring. Scott Instrument 124 Oil cleanup. Three systems take oil out of marine or industrial waters. Mapco
134 Photochemical machining. Introduces finishing technique for metals. Photo Chemical Machining Institute 135 RIA for drugs of abuse. Procedures and kits for quantitating drugs by radioimmunoassay. Beckman 136 Water cleanup. How to use electrodialysis for water treatment and brine concentration. Dow Chemical 137 Lab accessories. 84page catalog of glass and plastic bottles, joints, dishes. Wheaton Scientific 138 Foam mailers. For packing biologies from 1 oz to 300 lb. Polyfoam Packers 139 Fluorometric analysis. Describes advantages of photon counting for small samples. Ortec 140 Electrochemistry. Accessories catalog includes cells, electrodes. Princeton Applied Research
150 Corrosion inhibitor. Dodecenylsuccinic anhydride also is a curing agent for electrical epoxy resins. Milliken Chemical 151 Derivatizing kits. Each has six reagents for making electron capture derivatives. PCR 152 Peroxyketals. Used as free radical initiators, hydrogen abstracters, and curing agents. Pennwalt 153 Waste treatment enzymes. Five concentrates offered for flexibility in formulating. Wallerstein 154 Alumina trihydrates. Low-cost filler for flame and smoke suppression. Solem Industries 155 Solid mercaptosilane. Low-odor coupling agent for rubber processing. Union Carbide 156 Hard surface cleaner. Modified alkanolamide for detergents has good solubility, compatibility with detergent builders. Lonza
110 Organic viscometer. Fits distillation flask for continuous monitoring. Nametre
Literature
111 Acid digestion bomb. For digesting analytical samples in strong acid or alkali. Paar Instrument
127 Instrument catalog. 32 pages of flowmeters, pipets, syringes, and controls. Gilmont Instruments
142 Spectrophotometry. 8page catalog of cells and accessories. Quaracell
157 Dyeing assistant. Liquid prevents dye precipitation for nylon and Lycra fabrics. Refined-Onyx.
112 Liquid chromatograph. High-performance model has built-in processor. HewlettPackard
128 Lung protection. Describes respiratory hazards, assessment and control. Mine Safety Appliances
143 Industrial instruments. Trade's largest selection in 885-page catalog. Economy Gauge & Instrument Supply
For information on these items or numbered ads, see Reader Service Card
141 Petrochemical defoamers. How to select and use silicone defoamers in petroleum industry. Dow Corning
July 19, 1976 C&EN
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