Operating in Chemical Ionization (CI) Mode 4
High Vacuum Pressure in CI Mode
Operation Manual 77
30 2.10 ×10
–1
7.31 ×10
–5
1.71 ×10
–1
4.30 ×10
–6
35 2.18 ×10
–1
7.39 ×10
–5
1.80 ×10
–1
4.76 ×10
–6
40 2.25 ×10
–1
7.43 ×10
–5
1.88 ×10
–1
5.18 ×10
–6
Table 6 Typical analyzer vacuum with reagent gas flow (continued)
Collision cell gas flow on
N2 = 1.5 mL/min
Collision cell gas flow off
MFC (%) Rough vac High vac Rough vac High vac
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