Series 590 Isothermal DID Gas Chromatograph

GOW-MAC Instrument Company, a leading manufacturer of gas analysis instrumentation and compressed gas handling equipment, offers the Series 590 Isothermal DID Gas Chromatograph. This instrument utilizes GOW-MAC's patented discharge ionization detector to detect sample components. The DID is a concentration-dependent universal detector. When used in the Series 590 GC, the DID allows for the dedicated analysis of trace gas impurities in the part-per-billion range. Common detectable impurities include H₂, Ar, O₂, N₂, CH₄, CO and CO₂. The Series 590 DID GC is well suited for the specialty and electronic gas industries.

The Discharge Ionization Detector is sensitive to compounds in the ppb range. The DID uses an electrical discharge in helium to generate photons in the ultraviolet region of the light spectrum with sufficient energy to ionize all compounds., Hence, the DID is a universal detector that is sensitive to all compounds, except helium, and produces positive peaks, even for neon.

The extremely sensitive detector is contained in a leak-tight, helium purges housing to eliminate possible system contamination and produce the utmost in detector sensitivity. This configuration has proven more reliable with faster and easier start-up than a radioactive Helium Ionization Detector (HID). Due to the extremely high sensitivity of the DID, it is recommended that helium purifiers be used for the carrier gas.

The GOW-MAC Series 590 DID GC is a complete, dedicated gas chromatography system requiring only data handling and a few accessories. Data presentation may occur on a 1 mV potentiometeric recorder, computing integrator or data handling software.

GOW-MAC Instrument Co., 277 Brodhead Road, Bethlehem, PA 18017. Tel: 610-954-9000; Fax: 610-954-0599.