Gc/Ms Gas And Reagent Requirements - Agilent Technologies ALS Handbuch

GC/MS Gas and Reagent Requirements

Table 61
Table 61 5975 Series MSD total gas flow limitations
Feature
High vacuum pump
*
Optimal gas flow mL/min
Maximum recommended gas flow, mL/min
Maximum gas flow, mL/min
Max column id
* Total gas flow into the MSD = column flow + reagent gas flow (if applicable) + Agilent CFT device flow (if applicable).
† Expect degradation of spectral performance and sensitivity.
Table 62
Table 62 5977 Series MSD total gas flow limitations
Feature
High vacuum pump
Optimal gas flow mL/min
Maximum recommended gas flow,
mL/min
Maximum gas flow, mL/min
Max column id
* Total gas flow into the MSD = column flow + reagent gas flow (if applicable) + Agilent CFT device flow (if applicable). Instru-
ments using a JetClean ion source system may also add a small (~0.075 mL/min) hydrogen flow.
† Expect degradation of spectral performance and sensitivity.
GC, GC/MS, and ALS Site Preparation Guide
lists the limits on total gas flow into the 5975 Series MSD.
†
lists the limits on total gas flow into the 5977 Series MSD.
5977A MSD
5977B MSD
*
†
G3175A
Diffusion
1.0
1.5
2.0
0.25 mm (30 m)
G7037A G7038A, G7039A, G7040A
G7080B G7081B, G7077B, G7078B, G7079B
Diffusion Performance turbo
1.0 1.0 to 2.0
1.5 4.0
2.0 6.5
0.25 mm (30 m) 0.53 mm (30 m)
7820 MSD Site Preparation
G3176A
Standard
1.0
2.05
2.4
0.32 mm (30 m)
123