NEW PRODUCTS—LABWARE A N D Laboratory Equipment
INSTRUMENTS Atomic absorption spectrophotometer (Model 800). Double beam, with monochromator and concentration computer for each beam; can determine two metals simultaneously; can use second beam as reference beam or for flame emission; digital readout in concentration, absorbance, % absorption, or emission intensity; readout can be integrated for increased precision. Fisher Scientific Co., Pittsburgh, Pa. E37
Water stills ( H i - F l o w ) . 4 and 8 liter-per-hour sizes; all glass except for chromium-plated heating elements; pyrogen-free distillate, with less than 0.1 p.p.m. iron, copper, or nickel; water level kept constant near heating element. Pope Scientific, Inc., Menomonee Falls, Wis. E 30 Chromatography test kit. Controlled-Pore Glass granules in five 50-cc. jars, and a 50-cc. bed volume column; pore diameters: 240, 370, 700, 1250, and 2000 A.; instructions. Corning Glass Works, Corning, N.Y. E 31
Spectropolarimeter (Cary 6 1 ) . Measures circular dichroism only; costs less than if optical rotatory dispersion were included; wave length range from 1850 to 8000 A.; 0.01 to 2.0 degrees ellipticity full scale; low noise; large sample compartment. Cary Instruments, Monrovia, Calif. E 38
Sample injector. Submicroliter liquid injector for gas chromatography; volumes: 0.1, 0.2, 0.5 microliter; accessory sample vials for high-viscosity liquids. Hamilton Co., Whittier, Calif.
Liquid chromatograph ( A L C - 2 0 1 ) . For liquid-liquid, liquidsolid, or molecular size (exclusion) chromatography; high speed and resolution; as many as 10 columns; differential refractometer detector; on-column sample injection. Waters Associates, Inc., Framingham, Mass. E 39
E32 Constant temperature circulator (Model F K ) . Range: —23° to 150° C. with control accuracy of ± 0 . 0 1 ° C ; 1-gallon stainless steel bath tank; p u m p capable of 2.7 gallons per minute; 12-inch X 18-inch bench space. PolyScience Corp., Evanston, 111. E 33
Gas chromatographic effluent analyzers (Models 1100 and 1101). Gas phase-controlled thermolytic dissociation; selected peak from first gas chromatograph is partially thermally cracked in analyzer; second chromatograph separates products, characteristic of first effluent. Chemical Data Systems, Inc., Oxford, Pa. E 40
Magnetic stirrer (Model 9 5 0 ) . Reversible; one stirrer in control box and one stirrer remotely controlled; remote stirrer is submersible, measures 2 1 /* inches in each dimension, and holds u p to eight test tubes (100 mm. X 10 mm. to 150 mm. X 15 mm.) when inverted. Henry Troemner, Inc., Philadelphia, Pa. E 3 4
Gas chromatographic effluent analyzer (Model 12-41). Model H-1200 infrared spectrophotometer equipped to analyze trapped effluent; gold-plated micro light pipe absorption cell; heated transfer line from chromatograph; manual trapping valve. Wilks Scientific Corp., South Norwalk, Conn. E 41
Instruments Spectrophotometer (Model 3 5 6 ) . UV/visible; double beam and double wave length; can measure first derivative absorption curves; can direct both beams through sample cell, with sample beam scanning and reference beam at fixed wave length, or can operate with both beams fixed for reaction rate measurements; highest scale expansion gives full-scale absorbance of 0.01. Perkin-Elmer Corp., Norwalk, Conn. E 35
Literature Manual spectrofluorometer. Brochure lists specifications, accessories, applications; high sensitivity; manual scanning. Farrand Optical Co., Inc., Mt. Vernon, N.Y. L1 Recorders (Series 3000). Bulletin describes strip-chart recorder series; push buttons select speed from 20 to 0.05 inches per minute; nine Y-axis plug-ins; chart 10 inches wide, 100 feet long. Houston Instrument, Bellaire, Tex. L2
Automatic wave length selector (SP8O03). For use with Unicam SP8000 UV spectrophotometer (1900 to 7000 A. or 8500 A . ) ; automatic absorbance or concentration measurements at as many as 15 wave lengths; solves simultaneous equations to determine two or more components absorbing at same wave length; repeat measurements can be made at preset time intervals. Philips Electronic Instruments, Mount Vernon, N.Y. E 3 6
Feb.
.MAIL fcOUPON [FOR FREE INFORMATION.
Digital multimeters (Data Sheet 1023). Describes specifications, options, accessories for Series 5200 5-digit multimeters. Dana Laboratories, Inc., Irvine, Calif. L3
23, 1970
Valid through May 25, 1970
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