INTERESTED IN GAS CHROMATOGRAPHY? I N V E S T I G A T E BARBER-COLIVIAN'S C O M P L E T E L I N E O F GAS CHROMATOGRAPHY PRODUCTS
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SERIES 5000 SELECTA-SYSTEM
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The Selecta-System is a truly modular gas chromatograph designed to meet the ever-changing needs of the research chemist. Extremely versatile, the instrument adapts to new techniques in gas chromatography without complete instrument obsolescence. You purchase only what you need — when you need it. Salient features include: • • • • • • • •
Temperature Programming All-Glass Systems On-Column Injection Capillary Column capability Maximum Detector selection Low instrument obsolescence 500 °C upper Temperature Limit Versatility
DETECTORS
• Model 5120 Electron Attachment Detector. This extremely versatile detector features the exclusive adjustable anode. This unique feature permits operation as electron attachment, cross section, and electron drift velocity detectors. Detection of picogram amounts (10 1 5 mole/sec or better). • Model 5121 Flame Ionization Detector. A highly sensitive, low-noise detector (detectability 10" u mole/sec) is designed for operation with flow rates from 0.5 cc/min to 250 cc/min at temperatures to 500"C. • Model 5122 Thermal Conductivity Detector. Highly sensitive detector (W-2 filaments) adaptable to Series 5000 System. Dimbat-Porter-StrosS sensitivity index exceeds 11,000. • Argon Ionization Detectors. A complete line of Beta ionization detectors featuring high sensi· tivity, simple operation and stability.
SPECIAL PURPOSE INSTRUMENTS •
SPECIALIZED SYSTEMS
• Model 5190 Radioactivity Monitoring System. Highly sensitive continuous monitoring. Features combustion system, proportional counter (room temperature operation) and ratemeter.4 Limit of detection exceeds .1 nanocurie for ' C and .5 nanocurie for 3 H. • Model 5180 Pyrolysis System obtains maximum reproducibility. Features a selectable, reproducible time interval. Does not interrupt carrier flow during operation. • Cryogenic Chromatography — The BarberColman Subambient Temperature Programming System automatically programs and controls column bath temperatures from -65°C to 400°C. • Dual Channel Gas Chromatography — Dual detection systems such as Flame Ionization and Electron Attachment provide an additional dimension in data presentation. Many detector combinations, easily installed in any Selecta-System instrument. • Dual Column Temperature Programming — This highly useful technique for column bleed compensation (during temperature programming) is available for Flame or Argon ionization detector systems with Series 5000 Selecta-System instruments.
These Barber-Colman models were developed to meet the need for low-cost, high quality instruments for specific analytical problems. Particularly suited for routine quality control applications. • Model 5300 Steroid Analyzer. For use in clinical laboratories for the analysis of 17-ketosteroids. Features ease of operation, "cook-book" procedures, all-glass column, on-column injection. Supplied with either Flame or Argon Ionization detectors. • Model 5320 Flame Ionization Chromatograph. Simple, inexpensive instrument for routine applications. Features dual injection ports, manual temperature programming, coiled columns, integral air supply, and highly sensitive flame detector. • Model 5340 Thermal Conductivity Chromatograph. High performance, high sensitivity (W-2 filaments) inexpensive unit. Dual injection ports, coiled columns, manual temperature programming. Simplicity of operation. Ideal instrument for educational purposes.
Contact one of our 50 Sales and Service Offices or Rockford—see the Yellow Pages.
BARBER COLMAN
BARBER-COLMAN COMPANY Dept. L, 1 5 1 0 4 Rock Street, Rockford, Illinois, U.S.A. BARBER-COLMAN of CANADA, Ltd., Dept. L, Toronto & Montreal · Overseas Sales Mgrs.: Ad. Auriema, Inc. N.Ys Circle No. 28 on Readers' Service Card
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ANALYTICAL CHEMISTRY
