Nitrogen as an inert gas is a very valued lab gas and is used for a number of lab applications.

Application:

Nitrogen finds it’s application in labs in Auto samplers, GC’s, LC/MS, Spectrometer, Nuclear Magnetic resonance (NMR), Protein analyzer, Solvent evaporators, Thermal Galvanic Analyzer(TGA), Total Organic Carbon Analyzer etc.

For Gas Chromatography (GC)

Nitrogen is widely used in Gas chromatography because most gas chromatography column stationary phases are based on modified polysiloxane or polyethylene glycol materials. These materials oxidize in the presence of Oxygen at elevated temperatures. This behavior, known in part as bleed, will very quickly degrade the performance of the column.

FOR Liquid Chromatography-Mass Spectrometry (LCMS)

LC-MS uses a HPLC system but at the point of the liquid mobile phases leaving the column the liquid sample is sprayed to produce micro-droplets. These evaporate rapidly releasing ionized analyte molecules which can then be separated in the MS. Large flow sprays can benefit from additional atomization or nebulisation using a high flow of Nitrogen.

For Turbo Evaporators

Nitrogen is use in turbo evaporators as it accelerate Evaporation by decreasing the partial vapour pressure of the solvent, it continually force off the layer of air that is saturated with vapour. By immediately removing molecules that enter the vapour state, the molecules do not have a chance to return to the liquid, which increases the evaporation rate.