Articles and Applications
Showing items tagged: hydrogen
This Application Note was first published in the LCGC Applications book in July 2017
Learn how to convert your GC carrier gas from helium to hydrogen with this step by step guide.
Hydrogen gas generators use a proton exchange membrane (PEM) to produce hydrogen gas from water. The PEM cell was originally developed by NASA and is extensively used in industrial and laboratory applications.
1. Gas Source Helium is becoming increasingly expensive with reports of its price having doubled in some regions between 2013 and 2015. Added to its increased price, supply cannot be ensured in certain regions which is increasing the number of labs looking to change to hydrogen.
Background Researchers from Prof. Guido Verbeck’s group at the University of North Texas (UNT) carried out analysis of drugs of abuse (DOA) and explosives using an ion trap GC-MS to compare results when using helium and hydrogen carrier and buffer gas. As well as comparing the two gases, the group also assessed a number of ion volumes with different orifice diameters to look at their effect on sensitivity with either gas.