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helium

Helium or Nitrogen, Tank or Generator?

by Peter Froehlich, Kim Myers
Helium is commonly used as the makeup gas for flame ionization detection in gas chromatography;
however, dramatic increases in cost and limited availability in recent years have led many chromatographers to use nitrogen in its place.

Leaving Helium Behind

by John Speranza
The business benefits of on-site hydrogen generation for gas chromatography