Gas And Reagent Selection - Agilent Technologies ALS Handbuch

Gas and Reagent Selection

The 7820 MSD system (GC and MSD) requires helium or hydrogen carrier gas.
If using any MS system, use of hydrogen as the carrier gas may require
hardware modifications for best performance. Contact your Agilent service
representative.
Nitrogen and Argon/Methane are generally not suitable for GC/MS carrier gas.
N O T E
When using hydrogen (H
WA R N I N G
gas can flow into the GC and create an explosion hazard. Therefore, be sure that the
supply is turned off until all connections are made and ensure the inlet and detector
column fittings are either connected to a column or capped at all times when
hydrogen gas is supplied to the instrument.
Hydrogen is flammable. Leaks, when confined in an enclosed space, may create a
fire or explosion hazard. In any application using hydrogen, leak test all
connections, lines, and valves before operating the instrument. Always turn off the
hydrogen supply at its source before working on the instrument.
Please refer to the Hydrogen Safety Guide shipped with your instrument.
GC, GC/MS, and ALS Site Preparation Guide
) as the carrier gas or fuel gas, be aware that hydrogen
2
7820 MSD Site Preparation
119