Presentation Profile
Impact of using Hydrogen as carrier gas in GC and GC/MS
Main Author
JAAP DE ZEEUW - CreaVisions
Abstract:
In Gas chromatography there is an increasing need to use a different carrier is. Mostly used is helium, but this gas becomes not only very expensive, the supply is also not guaranteed. Alternative gases are Hydrogen and Nitrogen. Using Hydrogen adds other benefits as analysis time can be reduces a factor 2, and you can reduce contamination as you need to inject 50% of the original amount to get the same signal. Important aspect is safety as Hydrogen-air mixtures between 4 and 76 % are combustible. Also using H2 in GC/MS is possible, but there are several areas of attention, like fragmentation, activity, flow, column dimensions, noise, background one need to consider. If you decide to use H2 you will be independent of gas supply as you can invest in a H2 generator, In this course we will discuss the switch from helium to H2 in detail
