Gases and equipment used in delivery of gas to GC instruments; includes gas calibration mixes, gas generators, purifiers, traps, filters, flowmeters, regulators, manifolds, changeover panels, needle valves, and gas cylinder supports.
Zero air gas generators provide a convenient and safe alternative to cylinder gas for gas chromatography combustion applications. These systems remove organic impurities from existing compressed air sources allowing the user to eliminate expensive bottled zero grade air from their lab.
High vacuum hollow glass stopcocks precision ground with corresponding numbers on barrel and plug. Lower vacuum chambers on stopcock are evacuated with a separate hole in the plug in order to hold the plug in the stopcock barrels.