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1 Quick Source . . . for over 90 standard IR transmission windows. Barnes infrared Artalylical Accessories
Barnes can be the single source of supply for all your crystal requirements. We provide discs, rectangles, and squares . . . drilled or undrilled . . . from NaCI to Csl. Over 90 different items . . . all available immediately from stock. We supply prompt price and delivery information on special orders. And Barnes windows fit standard cells made by all manufacturers. Barnes crystals are a product of rigid manufacturing and quality control to assure flawless performance. And each window is individually wrapped to insure perfect condition. For your crystal needs, check page 4 of our new 40-page cata log, "Barnes Infrared Analytical Accessories." Write or phone for your copy. Barnes Engineering Company, 30 Commerce Road, Stamford, Connecticut 06904. Call toll free (800) 243-3498, Ext. 281, or in Connecticut, (203) 348-5381, E x t . 281.
BARNES
Your IR Spectroscopy Source. CIRCLE 2 6 O N
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Model IL 555 CTF (controlled-temperature furnace) atomizer is designed to replace the system in atomic absorption instruments for applications which require great improve ments in analytical sensitivity or the direct analysis of solid or viscous materials. Com pared to the burner, the IL 555 has about 100X better concentration sensitivity and 1000X better absolute (sample weight) sensitivity. It features true temperature feedback and rapid heating rate. Pyrolytically coated graphite microboats are available as an alternative choice to the hollow graphite cylinders for sample containers. $5000. Instrumentation Laboratory, Inc. 404
QUALITY LABORATORY APPARATUS NEW LOW PROFILE
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sTiR-ughT ILLUMINATED STIRRING FOR TITRATIONS MODEL SL-23325 (2 stirring bars included) 7" χ 7" top has 5 ' / i " square plexiglass illuminated surface. Evenly diffused cool white light provides improved clarity of faint end points. Side-mounted motor and control are isolated from top plate. No motor heat transferred to titrable solutions. Positive solid state stirring control. You get the speed you s e t . . . anywhere between the 60 to 1,000 RPM speed range. Low profile design. Only 3!/ 2 " high. Write for Laboratory Apparatus Catalog #600.
THERMOLYNE SYBRON CORPORATION
2 5 5 5 KERPER B O U L E V A R D , D U B U Q U E , IOWA 52001
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1078 A · ANALYTICAL CHEMISTRY, VOL. 48, NO. 13, NOVEMBER 1976
Chromatography Automation System HP 3385A system consists of an inter active keyboard-controlled terminal with a printer/plotter and a module c o n taining the processor and magnetic card reader and recorder. The system controls one analytical instrument at a time. Up to five instruments may be connected to the 3385A, and the opera tor can select manually the one he wishes to control. Features include au tomatic recalibration and averaging of calibration data. The ability to change parameters between runs allows auto matic sequencing for analysis of differ ent samples. The system offers 10 time-programmable functions for c o m plete control of integrator events such as tangent skimming and baselines. Op tions include programmable controls for automatic liquid samplers and a gen eral-purpose output board for the con trol of valves. $6000. Hewlett-Packard 407
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