NEW high purity hydrogen generators capable of gas purities of 99.9999% are being introduced to Australasia by domnick hunter to enhance safety and lower costs in laboratory and industrial applications.
The Hydrogen MD range of high purity, low maintenance generators produces carrier gas for gas chromatography processes that separate organic and inorganic compounds so that they can be analysd and studied.
The new generators - the culmination of 18 months research and development - eliminate the need for the storage and handling of high-pressure cylinders by instead continuously generating gas at the place of use from de-ionised water and electricity.
The process occurs at low pressure with minimal storage of hydrogen, which is becoming increasingly used as a carrier gas because of benefits such as lower cost, increased speed of analysis and increased separation efficiency.
Twin regenerative mini towers are fitted with a proprietary desiccant material to filter and separate hydrogen molecules and enhance its purity.
This method of purification is much more energy efficient that single-pass desiccant cartridges and heated palladium purifiers. Maintenance of this purification technology consists of an inexpensive two-yearly column replacement.
The low-maintenance generator can be stacked upon the domnick hunter Zero Air to give a compact all-in-one solution for GC-FID processes (Gas Chromatography, Flame Ionisation Detection).
The generators' monitoring and alarm system is designed to provide unrivalled levels of end-user safety and reliability.
The generators are ideal for supplying hydrogen for GC and GC/MS carrier gas applications and can also be used to supply hydrogen to all known combustion detectors used routinely in GC.
Three models are available, with flow rates ranging from 160ml/min to 500ml/min.
Gas chromatography is widely used throughout industries ranging from food, beverage and manufacturing through to resources, primary processing and materials handling.
The process can also be used to detect bombs in airports, identify and quantify such drugs as alcohol, and in forensics to compare fibres found on crime victims.