Zero Air and on-site gas generation
Zero Air is air which has had hydrocarbons removed via a process of oxidative catalysis to ensure it only contains less than 0.1 parts per million (PPM) of total hydrocarbons.
Essentially a mixture of oxygen and nitrogen, zero air is required for laboratory applications which would be negatively affected by the presence of hydrocarbons or small levels of sulphur or nitrous oxide. These gases can sometimes be present in air due to pollution.
A Selection of Peak Scientific Zero Air Generators
GC (Gas Chromatography) is a laboratory application which requires zero air as it is used as flame support for FIDs (Flame Ionizatio Detectors) and FPDs (Flame Photometric Detectors). For these applications the zero air is usually supplied in one of two ways, via pressurized gas cylinders or via a gas generator. Gas generators are the more modern, convenient and economical solution for laboratory gas supply as they provide the required gas at the push of a button and their supply never runs out, eliminating the need for reapeated orders of gas cylinders. With a gas generator there is also no need for laboratory staff to move cumbersome and dangerous gas cylinders. All Peak Scientific Precision Zero Air generators contain less than 0.05ppm of total hydrocarbons, making them an ideal choice to meet the zero air requirements of your lab.
Found this article interesting? You might also like: